I too have a G1 and want to upgrade. I'm currently on a $59 family voice-only plan with the $20 Preferred Android Web data service. Looking at the upgrade to the Galaxy S II, it mentions this for the $50 Mail-in Rebate:
"Req’d for rebate card: 2-yr. contract extension with an Even More™ Talk + Text + Web plan OR Web service of at least $30/mo AND be eligible for full upgrade pricing."
Since my plan is not talk+text+web nor is my data at $30, does that mean I don't qualify for the rebate? If so, then the phone becomes $279.00 instead of $229.99. Or worse yet, will they automatically drop my $20 data plan and force me onto a $30 data plan?
And it looks like I don't even qualify for the upcoming Valentine's Day promotion since it requires a $99.98 family plan and the 5GB data plan. Technicalities aside, no idea if the 'Preferred Android Web' plan can be considered equivalent to the 5GB plan. I hate it when they rename a data plan, charge more for it, and then make the old-name data plans not work on new phones.