We found Palm IIIx's expansion slot beneath its cover. While memory upgrade cards are not yet available from 3Com, other manufacturers do make compatible cards. With its increased memory and OS 3.1, the Palm IIIx is a great evolutionary step in the Palm line. Just pull the TM-20 from your pocket, place it against a telephone handset, and press one button to get your messages. No additional computer or Internet service is necessary.
Setup consists of inserting the batteries and setting the clock.
The menu prompts are not entirely intuitive, but by following the Quick Start instruction sheet, we set up the unit and the PocketMail account and sent our first e-mail message in about 30 minutes. Reassuring LEDs let you know that the sending and receiving processes are taking place. We successfully sent and received several messages through different ISPs and desktop e-mail programs. The organizer functions are primitive, useful mainly for tracking names, addresses, and appointments. In our test, the backup program took a surprisingly long 15 minutes.