I’ve been using the new Palm Treo 800w for a few days, and I wanted to share my impressions of the device before I post my full review sometime next week.

The Treo 800w is fast – its TI CPU (to my surprise), makes quick work of applications and files, the EVDO connection is more than adequate for most web tasks (particularly on Opera Mobile 9.5), and file transfers are zippy over USB 2.0 or Wi-Fii.  Next, the screen.  The Treo 800w has a square display with an unusual but beautiful 320×320 resolution.  This display offers some compatibility issues with third-party Windows Mobile software, but it looks great.  Lastly, there’s Treo thumb QWERTY keyboard, which is one of the best out there.

After my last ho-hum experience with the WinMo Treo, the Treo 750, I’m very impressed by the 800w.  The 800w isn’t for everyone, but if you’re a Treo fan and a Sprint customer, I recommend you swing by your local store and have a look.  More next week.