I have pretty much the same question. Difference is, I just got the Straight Talk prepaid set-up.(Unlimited,30 days) with my Galaxy Proclaim. I am new to using Android, and I know the Proclaim is new to Straight Talk.
The plan says "unlimited" but I believe excessive data usage could kill the unlimited status and terminate the plan I paid $45 for.
I also have a mobile MiFi hot spot. (Prepaid thru Virgin) that I use for my laptop internet connection.
Will using my phone's WiFi thru the hot spot mess me up with my plan, or should I just keep WiFi turned off altogether and stick with Straight Talk's mobile web?
Well, I guess this isn't the same question, but it was the only thread i could find concerning hot spots.