Can I use a Samsung Gravity and still be able to have unlimited texting with a Sidekick features SIM card?

My sidekick broke a while ago. So I used a RAZR in replace of it, ew. But I'm getting the Samsung Gravity soon. Can I still be able to use the Samsung Gravity and have unlimited texting while there's a Sidekick feature SIM card in there?Can I use a Samsung Gravity and still be able to have unlimited texting with a Sidekick features SIM card?Nope. The plan will only work for the Sidekick. You would just have to change it to an unlimited texting service.Can I use a Samsung Gravity and still be able to have unlimited texting with a Sidekick features SIM card?ummm no. the sidekick features are for the SIDEKICK. not the gravity. i have the gravity, and its pretty much just a phone for texting. not many big time features here.