Re: What kind of pda/cell phone?
It has a scheduler, and if you get the data cable and PhoneTools software (I got the OEM CD, data cable, and car charger for $15+shipping on ebay) you can sync it up with Outlook Contacts and Calendar. (You can also sync via BlueTooth if your computer supports it.)
The MP3 player isn't that great, and there is no headphone jack so you would have to use BlueTooth or the internal speaker. The MP3's are also limited to 96kbits I think.
The camera isn't too bad. 1.3mp. At the highest resolution and highest quality it can hold about 95 pics. It also does video.
Just remember, the data space is all shared between the camera, MP3's, screensavers, ringtones, etc. I think mine had about 40megs of free space available after all the system overhead was loaded on there.