Editing Palm OS (section)

===Palm OS 5.0===
Palm OS 5.0 was unveiled by the Palm subsidiary PalmSource in June 2002<ref>{{cite press release |url=http://www.access-company.com/news/press/PalmSource/2002/061002_1.html |title=PalmSource Ships Faster, More Powerful Palm OS 5 |publisher= PalmSource |date=June 10, 2002 |archive-url=https://archive.today/20120604150634/http://www.access-company.com/news/press/PalmSource/2002/061002_1.html |archive-date=2012-06-04}}</ref> and first implemented on the Palm [[Tungsten T]]. It is the first version to support [[ARM architecture|ARM]] devices and replaced the Kadak AMX68000 kernel with the custom MCK kernel, named for its developer, that was written in-house by Palm.<ref>{{Cite web|url = http://mobile.osnews.com/story.php/26838/Palm-Im-ready-to-wallow-now/page4|title = The Palm operating system|date = 2013-03-11|last = Holwerda|first = Thom|website = OS News|access-date = 2014-04-18|archive-date = 2014-04-19|archive-url = https://web.archive.org/web/20140419013531/http://mobile.osnews.com/story.php/26838/Palm-Im-ready-to-wallow-now/page4|url-status = dead}}</ref> Applications written for the prior OS versions use the older [[Freescale Dragonball|DragonBall]] 68K instruction set and are supported via the ''Palm Application Compatibility Environment'' (PACE) emulator in Garnet. Even with the additional overhead of PACE, Palm applications usually run faster on ARM devices than on previous generation hardware. New software can take advantage of the ARM processors with small units of ARM code, referred to as ''ARMlets''.

With a more powerful hardware basis, Palm OS 5 adds substantial enhancements for multimedia capabilities. High density 320x320 screens are supported together with a full digital sound playback and record API. Palm's separate Bluetooth stack is added together with an [[IEEE 802.11b-1999|IEEE 802.11b Wi-Fi]] stack. Secure network connections over [[Transport Layer Security|SSL]] are supported.  The OS can be customized with different color schemes.

For Palm OS 5, PalmSource developed and licensed a web browser called ''PalmSource Web Browser''<ref>{{cite press release | url=http://www.access-company.com/news/press/PalmSource/2002/091702.html |title=First PalmSource ARM-Native Proxy-less Web Browser Ships to Licensees |publisher=PalmSource |date=September 17, 2002 |archive-url=https://archive.today/20120604150634/http://www.access-company.com/news/press/PalmSource/2002/091702.html |archive-date=2012-06-04}}</ref> based on ACCESS' [[NetFront]] 3.0 browser.

'''Palm OS 5.2''' is mainly a bugfix release, first implemented in the [[Samsung]] SGH-i500 in March 2003.<ref>{{cite web|title=Samsung reveals feature-packed SGH-i500|url=http://www.infosyncworld.com/news/n/3238.html|website= infoSync World|date=March 13, 2003|url-status=dead|archive-url=https://web.archive.org/web/20030604041505/http://www.infosyncworld.com/news/n/3238.html|archive-date=June 4, 2003|access-date=2007-09-11}}</ref> It added support for 480x320 resolutions and introduced the new handwriting input system called [[Graffiti 2]]; the new input system was prompted by [[Xerox]]' [[#Legal issues|lawsuit win]] against Palm. Graffiti 2 is based on ''Jot'' from CIC. The last bugfix release is version 5.2.8.

'''Palm OS 5.3 Simplified Chinese Edition''' released in September 2003, added full [[Simplified Chinese character|Simplified Chinese]] support,<ref>{{cite press release |url=http://www.access-company.com/news/press/PalmSource/2003/091003_chineseEd.html |title=PalmSource Ships Palm OS 5 Simplified Chinese Edition |publisher=PalmSource |date=September 9, 2003 |archive-url=https://archive.today/20120604150633/http://www.access-company.com/news/press/PalmSource/2003/091003_chineseEd.html |archive-date=2012-06-04}}</ref> further support for [[QVGA]] resolutions, and a standard API for virtual Graffiti called ''Dynamic Input Area''. This version first shipped on [[Lenovo]]'s P100 and P300 handhelds.<ref>{{cite press release | url=http://www.access-company.com/news/press/PalmSource/2003/120803_lenovo.html |title=PalmSource Welcomes First Palm OS 5 Simplified Chinese Edition Handhelds from Lenovo |publisher=PalmSource |date=December 8, 2003 |archive-url=https://archive.today/20120604150634/http://www.access-company.com/news/press/PalmSource/2003/120803_lenovo.html |archive-date=2012-06-04}}</ref>

'''Palm OS Garnet''' (5.4) added updated Bluetooth libraries and support for multiple screen resolutions ranging from 160x160 up to 480x320. It first shipped on the [[Treo 650]] in November 2004. This version also introduced the ''Garnet'' moniker to distinguish it from Palm OS Cobalt 6.0. The last bugfix release is version 5.4.9.

'''Garnet OS 5.5''' dropped the ''Palm'' moniker<ref>{{cite web|last=Blass|first=Evan|title=Whatever Happened to Access Linux Platform?|url=http://pocketnow.com/webos/whatever-happened-to-access-linux-platform|publisher=PocketNow|access-date=22 April 2014|date=2010-08-24|quote=As for PalmOS Garnet, the last version of the operating system shipped on consumer devices, it was renamed simply to Garnet OS in early 2007, eliminating the final traces of Palm branding from the dying platform.|archive-url=https://web.archive.org/web/20160304053234/http://pocketnow.com/webos/whatever-happened-to-access-linux-platform|archive-date=4 March 2016|url-status=dead}}</ref> and, {{as of|2007|lc=on}}, is the current version developed by ACCESS. This version is dedicated for use inside the ''Garnet VM'' virtual machine.

'''Garnet VM''' was announced and released by ACCESS in November 2007<ref>{{cite web|last=Kairer|first=Ryan|title=Palm OS Garnet VM Released for Nokia Internet Tablets|url=http://www.palminfocenter.com/news/9526/palm-os-garnet-vm-released-for-nokia-internet-tablets/|publisher=Palm Infocenter|access-date=22 April 2014|date=2007-11-13|quote=Access has announced today that it is releasing Palm OS Garnet VM software for the Nokia series of Internet Tablet devices.}}</ref> as a core part of the [[Access Linux Platform]] and as an emulator allowing [[Nokia Internet Tablet]]s to run applications written for the Garnet OS. In June 2010, ACCESS release Garnet VM version 6 (a.k.a. Garnet VM Beta 6 1.05b).<ref>{{cite web|last=Keilhack|first=Kris|title=Updated Garnet VM for Nokia N900|url=http://www.palminfocenter.com/news/6416/updated-garnet-vm-for-nokia-n900/|publisher=Palm Infocenter|access-date=22 April 2014|date=2010-06-16}}</ref>