T-mobile publishes this information on their website:


-zones® and T-MobileWeb Settings

NOTE: T-Mobile Customer Care provides minimal support for phones not sold by T-Mobile USA. The following settings are provided for configuring non-T-Mobile branded mobile phones for use with the t-zones and T-MobileWeb data services. Not all links and features provided within T-MobileWeb will be compatible with non-T-Mobile branded phones.

T-Mobile provides an over-the-air wireless configurator that allows you to easily configure the most popular phones for use with t-zones. To begin setting up your phone, access the Wireless Configurator.

If you are unable to use the Wireless Configurator to configure your phone, you may type the settings manually using the information provided below. These settings are specific to T-Mobile USA and will only work with an active T-Mobile USA account.

Primary IP address:
216.155.165.050

Secondary IP address:
Blank

APN name:
wap.voicestream.com

Data bearer:
GPRS

Profile name:
GPRS

Username:
Blank

Bearer:
Data

Home page:
http://wap.myvoicestream.com



Seems like T-mobile is offering to allow use of a t-zones account by other devises.

John