Thats going to be tough. I presume you want thin like your Edge.

I'd say get something by Sony except they seem to be getting out of the business.

- My PEG-S20/U is truly battle scared from fighting all the junk in my pockets. The screen seems to be much more resistant to pen scratches. There are some, faintly visible in the input pad, but none that compare to what I had on my previous Visor. None that snag the pen.
- I really like the 128MB of extra space in the memory stick. With that it can do in device backups, hold 20 full novels, and still be about 1/2 empty. The backups help because I mostly use it stand alone.

Finally, the Sony has clocked more hours than the three Handspring Visors that preceeded it.