I agree that you won't find one that does everything well.

My Treo with GoodLink does email, contacts, calendar and phone very well, plays mp3's with pTunes and a 1GB SD card OK, and I can take pictures with the built-in camera.

But the camera is for capturing text on a whiteboard or documenting something I need to capture, certainly not for "photography". And playing mp3's is fine for just listening to tunes, but is certainly no Ipod when it comes to features and functions.

But it's probably the best you are going to get right now. The new Treo 700w may be slightly better at audion, assuming WM has an audio component, but a few ounces of a Nano and some E3c's is certainly worth the weight. And the Canon SD2/3/400 is a few ounces and will take pictures a few orders of magnitude better.