Pager-like Handheld for Textual Input?

Mike Hizgaard asks: "My good old RIM 950 has suddenly died on me. This tiny, 'thumb-typing' machine was my favorite text-entry device ever, especially because I could keep it in my pocket for more than one week without recharging/replacing the battery, and then upload all my notes into a computer using an RS232 connection. Now I am looking for a replacement, and would like to get something that uses either USB, IR or Bluetooth (since my laptop doesn't have a serial port), while retaining the tiny dimensions and thumb-typing as an input method. What are my options? (I never really made use of the email functionality, which was touted as the 950's main purpose.)" Please note that USB->Serial converters do exist, so if there are any serial devices that might also work, they are still valid options. Are there any decent RIM 950 replacements out there?