There’s some question about the legitimacy of these new “Sidekicks” that are being sold as the MobiFlip. According to appletech, a long time moderator on the official forums, they might not be all they’re cracked up to be! He says:
I wouldn’t be surprised if this phone disappears off the market soon because I don’t think they have any service agreements with Danger/MS to distribute their software.
They also more than likely purchased a bulk supply of refurb devices and some how modified the OS to add the Opera browser, something else that probably violates Danger/MS terms.
We know nothing about this device, if it’s locked, how they are even getting data services, etc…
So I wouldn’t be telling people it will work with whatever carrier they want.
People are reporting in the forums that the devices are working and even have data service. Rather than using the built in web browser that would proxy through the Danger servers, they’re running Opera Mini. Perhaps someone has finally unlocked the Sidekick’s data for use on any network? Whether or not they have the blessing of T-Mobile/Microsoft/etc is unknown.