they could have just release the full potential of GiGIBiru
that way .. GPS is easier to implement with an external GPS receiver ..

current iphone does not have GPS .. but navizone for iphone software works like an iphone.
basically it detect wireless signals from different towers and try to pin point your location by quite a wide radius ... only work best in cities in US which are covered fully by wi-fi

MMS is already possible on iphone through software installation .. original iphone doesn't have the MMS settings ... SwirlyMMS is used to receive MMS through the edge network ...

there is no problem with bluetooth .. just that Iphone's bluetooth is only limited to audio pairing .. not for file transferring .. they made it that way ..