Xircom SpringPort Modem 56 GlobalAccess

"The unique selling point of Handspring's Visor range is the Springboard port, the slot that accepts modules which bring the capabilities of a phone, a camera, an MP3 player and, in fact, anything developers can think of to the Palm OS-based handheld. Springboard modules have been slow in crossing the Atlantic, so it's pleasing, not to say a relief, to see Xircom's Springport break the drought."

"The applications supplied occupy half of the Modem 56's integral 829Kb of flash memory and the rest can be used for your own data. The MultiMail Pro v2.24 email client is one version behind the latest one from Actual Software, but is still usable and supports multiple accounts."