I have a Samsung i500 that I got off ebay. It works well, but the screen resolution isn't as high as my Sony Clie'. As a phone, it has more limitations than my Sanyo, but it works pretty well.

If there was something that had the form factor no bigger than the i500, the PDA features like the [link|http://www.palm.com/us/products/handhelds/tx/|Palm TX] or Sony Clie' TH-55, and the battery life of my Sony Clie', I'd be very happy. I don't want a camera phone, and I don't want my phone to be an iPod.

I think that it's still better to have a phone separate from a PDA at the moment. Big screen PDAs are nice, if they've got the resolution (something the Win PDAs and Win phones don't have). Phones should be small, have excellent transmit and receive properties, and have good battery life. Smashing all those features in one box limits the PDA or the phone or both.

Best of luck with the search.

Cheers,
Scott.