Looking at the three T-Mobile data plans for the G1 I'm not sure what the differences are.... G1 Service Plus - $34.99 Get unlimited communication capabilities, with unlimited Web access and domestic messages. Includes unlimited Web access, unlimited personal e-mail, and unlimited domestic text, picture, and instant messages. G1 Service - $24.99 Includes Unlimited Web access and 400 domestic text, picture, e-mail, or instant messages G1 Data-Only Service - $24.99 Get unlimited Web access. I understand the limits on text messages, but that's the deal with Email? If I'm using my gmail account on my G1 would each email count towards the 400? If I have the data-only plan can I not use email at all? That makes no sense. Also, since the last two options are the same price, what's the difference? Why even offer the data-only?