No. the sidekick phone is t-moble
The only cell phone company that carries the sidekick 3 is verizon. There are the only phone service I know of that still has the sidekicks other than the smartphones.
SideKick
sidekick
sidekick and iphone sidekick and iphone
Buy a verizon phone
No, it should not matter. As long as you have a Sidekick phone and you want to use internet on it, then register the phone for a Sidekick Data plan.
Yes the sidekick lx is a good phone it has a better camera, new things, and its faster than the sidekick slide!
Yes
Yes you can
no
Go to a Verizon store or try Wirefly.
The Sidekick is a GSM device (one that requires a SIM card) and Verizon uses CDMA (does not use SIM cards at all) and the 2 are not even remotely compatible. In light of this the answer to your question would be no.