If anyone knows what the Antenna Signal Booster Card is... its is what you insert in the back where your battery is. But, my question is... "Is the universal Signal Booster Compatible with the G?"

Thank You in advance for whoever helps me out on that question.

Dude, those things are a bunch of cr*p. It's a sticker with some gold printing on it.

They are just something that ebay sellers package in with "real" accessories so that you think that you're getting a great deal.

this has been discussed before and the bottom line is they are pure garbage....