29 Jan 07 Free T-Mobile without Vista
Sure, going out and paying $249 to upgrade to Microsoft Windows Vista Ultimate tomorrow gets you 3 free months of T-Mobile Hotspot service, but what if you could do it for free?
I don’t want to say too much, but if you ever thought about changing the “general.useragent.extra.firefox” in a browser other then IE to something that may or may not resemble this “Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0)” and visit this page to sign up: http://hotspot.t-mobile.com/vista/, it may or may not work for ya.
Not that I would ever recommend you try such a thing 
I wouldn’t recommend trying this either, as it would legally fall into the category of wire fraud.
Yup, looks like it might work. Nice.
big time novice here …. not sure i follow … help …
from firefox >
tools >
advanced preferences >
general.useragent>
general.useragent.extra>
general.useragent.extra.firefox
youre looking to change the part under ‘value’