Here's the trick...

When a regular modem connects, it usually says something to the effect of CONNECT 57600, or whatever the speed is. The Treo 300, however, only returns CONNECT when it makes its connection.

Some communications programs, and possibly older versions of Windows, might interpret that CONNECT as the string returned from a 300 bps modem. In reality, though, you've connected faster.

I don't think the modem in the Treo returns a specific speed because the speed is likely to vary depending on signal strength, amount of other phone usage, etc.

- Mike