StyleTap makes it possible to run Palm OS applications on different other mobile platforms. At the moment, there is a version for Windows Mobile availible. Especially former Palm OS users which now have a Windows Mobile smartphone often have StyleTap so that they can use their old programs.
At present there are few native iPhone applications availible (but many thousands are availible for Palm OS or Windows Mobile), so StyleTap for the iPhone also means that users can run almost every kind of software on their iPhone.
On StyleTap’s FAQ, the developers say that they might release versions for the iPhone, Symbian OS and also forGoogle’s Android.
Thanks to Alphasmart User for the link!