Sorry for the double-post but...

Seeing as I'm not hearing anything about other alternatives, would this work?:
On Tmobile's website, I can get this "Tmobile prepaid activation kit"(sim) for $7, then use either this $15/month prepaid plan, and simply do without data, or go for that Sidekick plan(which I recall reading is possible to use on the N900?) if possible.

Will this work?