I quit using Windows Mobile around the first version they called Windows Mobile and not PocketPC - my Dell x50 (recently sold BTW). The hardware was really nice (full SVGA, fast CPU, etc), but the OS was a slug (it even slowed down the broke the x50 after an upgrade so badly, Dell issued a warning) and while I preferred it to PalmOS for several reasons, I was trying Familiar Linux, etc.

I recently purchased my n810 after some research as I found I needed a "PDA" type thing again. I knew I would need to add PIM and such to it, but I also knew it ran a version of Debian (I use openSUSE 10.3 on my laptop), so I knew the community would be there. I have been pleasantly surprised by the performance, robustness, and application availability for the device given it relatively niche and small userbase.

Its just another reason to support the open source community. I can't wait to get Diablo (I am not hacking the n810 right now) and see what improves. In fact, my only complaint has been the lack of a "real" integrated PIM that syncs to Google/Evolution easily. I am using the GPE suite now, but it doesn't integrate with the built-in contacts version (or google contacts yet) making me keep two lists going, and the Pimlico that integrates doesn't sync with Google (it does allow you to import iCal though). If someone can do both, I will be most happy.

When people ask me about my n810, I refer to it as a computer and not a PDA or phone, or even IT. I say its a computer desgined to be connected to a cellphone so I am not forced to use AT&T...lol