Editing Palm OS (section)

===Palm OS 4.0===
Palm OS 4.0 was released with the new [[Palm m500 series]] on March 19, 2001.<ref>{{cite press release |url=http://investor.palm.com/releasedetail.cfm?ReleaseID=344698 |title=New Sleek Palm m500 and m505 Handhelds Add Expansion, Mobile Connectivity and Vibrant Color |publisher=Palm |date=March 19, 2001 |archive-url=https://web.archive.org/web/20110715040324/http://investor.palm.com/releasedetail.cfm?ReleaseID=344698 |archive-date=2011-07-15}}</ref> This version adds a standard interface for external [[file system]] access (such as [[SD card]]s). External file systems are a radical change to the operating system's previous in-place execution. Now, application code and data need to be loaded into the device's RAM, similar to desktop operating system behavior. A new [[Palm Universal Connector|Universal Connector]] with [[USB]] support is introduced. The previous optional Mobile Internet Kit is now part of the operating system. Version 4.0 adds an attention manager to coordinate information from different applications, with several possibilities to get the user's attention, including sound, LED blinking or vibration. 16-bit color screens and different time zones are supported. This version also has security and UI enhancements.

'''Palm OS 4.1''' is a bugfix release. It was introduced with the launch of the [[Palm i705]]. The later minor OS update to version 4.1.2 includes a backport of [[Graffiti 2]] from Palm OS 5.2.

'''Palm OS 4.2 Simplified Chinese Edition''' is targeted especially for the Chinese market with fully [[Simplified Chinese]] support, co-released with Palm OS 5.3. No device has been manufactured with this version up to now.<ref>{{cite web|url=https://www.computerworld.com/article/1575471/palm-os-goes-to-china-hong-kong.html|title=Palm OS goes to China, Hong Kong|date=Dec 11, 2002|publisher=Computerworld}}</ref>

Around this time, at least two emulators of the Palm OS surfaced for its competing platform, [[Windows CE]] (later [[Pocket PC]]). The first was [[Palm OS Emulator]], known prior as CoPilot, created by Conduits and a community of professional developers. The second, PocketPalm, created by an independent developer named George Andre and presented by Elad Yakobowicz, former Senior News Editor of [[Pocketnow]].<ref>{{cite web|url=https://www.zdnet.com/article/developers-squeeze-palm-inside-pocketpc|title=Developers squeeze Palm inside PocketPC|date=Jul 25, 2001|publisher=ZDNET}}</ref><ref>{{cite web |url=http://www.pocketnow.com/html/news/articles.7.g9q23t.pocketpalm.html |title=PocketPalm - Our Weapon in the Pocket PC/Palm War! |date=Jul 20, 2001 |website=Pocketnow |archive-url=https://web.archive.org/web/20010801191448/http://www.pocketnow.com/html/news/articles.7.g9q23t.pocketpalm.html |archive-date=August 1, 2001 |editor-first=Elad |editor-last=Yakobowicz |url-status=dead}}</ref><ref>{{cite web|url=https://www.idnes.cz/mobil/aplikace/pocketpalm-palm-v-pocketpc.A010721_0037059_ostatni|title=PocketPalm - Palm v PocketPC|date=Jul 23, 2001|publisher=iDNES.cz}}</ref>