It's free and open-source.

Ask a longtime Windows user to share their biggest frustrations about the operating system, and you'll probably get an earful about the headaches of installing and maintaining apps. And for good ...

I've got a pda (toshiba e400) with windows mobile 2003 and i often use it wirelessly (with the aid of an sdio wifi card).<BR><BR>I want to be able to install applications on it while i'm on the go.