An article on Geek.com is reporting that IBM is going to build their new PPC PDA using the QTopia OS.

Basically, it's the same OS as the Sharp Zaurus, and is a Linux with a QT UI. QT is a cross-platform development toolkit from the Norwegian company, Trolltech.

It remains to be seen when it will be released and whether it will be anything more than a reference platform, but the PDA world just got more interesting.