I have the treo 755 (since May) and my wife now has the Centro. Both are functionally identical, the Centro is just smaller. They do the palm stuff well: calendar, contacts, task list. Good integration with Outlook. I use contacts, tasks, and calendar integration, not email. The phone is fine. It also has good instant messaging, text messaging, email link to the web email sources, and fair to good internet browsing.

There is pretty good integration of contacts and phone functions. For example, from the phone page you click a contacts button and then start spelling either a first or last name of a contact. It will show the list of contacts you have in Outlook. Scroll down and and click on the person you want to call. It also has a button for Google Maps from contacts that can show a map of the person's place from Google Maps.

I get/send email from my att.net email account from the phone. Docs to go will display most office or PDA docs.

I added a 2gb memory card. It has a camera and video camera. We were at a horse show and my daughter used it to record video of 19 riders going through a 2 minute event ( so about 40 mins of video). There is also some kind of TV channels, but I don't get those.

The bad... no windows apps. It is sometimes slow to transfer from internet browsing back to Palm apps. In 6 months is has locked up maybe 4-5 times that required a quick battery removal and restart. The Centro keyboard and screen is a bit smaller than the Treo, but the benefit is the overall phone is smaller. Treo / Centro use unusual power adaptors that are not common and not cheap.

For me it is a good fit. I prefer the palm calendar, task list, and contacts over Windows/Outlook for a PDA/phone. It links very well to Outlook. I can sync with both my home computer and a work computer and keep all 3 schedules coordinated.

Chuck