Who makes the best plan for i phone 3GS?

Go beyond the basics. Designed for iPhone users who stream music, download videos, files, and apps; plus send email, surf the web and more. Includes unlimited usage with AT&T Wi-Fi Basic access and Visual Voicemail to listen to voicemail messages in any order you choose. Is it the right amount of data for you? Try the AT&T Data Usage Calculator tool to estimate how much data you use every month. How do I use AT&T Wi-Fi Basic? iPhone has Wi-Fi built in! You can connect quickly and seamlessly to your home wireless network or to more than 20,000 AT&T Wi-Fi Hot Spots in the U.S at no additional charge. Find an AT&T Hot Spot near you. A Wi-Fi enabled device required. Other restrictions apply. See http://www.attwifi.com for additional services details and locations. What if I go over 2 GB? DataPro 2 GB for iPhone includes 2 GB of data for use in the U.S. If 2 GB is exceeded, an additional 1 GB is automatically provided at a rate of $10 for each additional 1 GB. All data allowances, including overages, must be used in the billing period in which the allowance is provided. For more details on Data Plans, go to http://www.att.com/dataplans. Please note: AT&T is Apple's exclusive carrier partner for iPhone in the United States. An eligible data plan for iPhone is required. If AT&T determines that you are using an iPhone on your account without an eligible data plan, AT&T reserves the right to add an eligible data plan to your account and bill the appropriate monthly fee.

Stay connected and productive. Designed for iPhone users who primarily surf the web, send email, and visit social networking sites. Includes unlimited usage with AT&T Wi-Fi Basic access and Visual Voicemail to listen to voicemail messages in any order you choose. Is it the right amount of data for you? Try the AT&T Data Usage Calculator tool to estimate how much data you use every month. How do I use AT&T Wi-Fi Basic? iPhone has Wi-Fi built in! You can connect quickly and seamlessly to your home wireless network or to more than 20,000 AT&T Wi-Fi Hot Spots in the U.S at no additional charge. Find an AT&T Hot Spot near you. A Wi-Fi enabled device required. Other restrictions apply. See http://www.attwifi.com for additional services details and locations. What if I go over 200 MB? DataPlus 200MB for iPhone includes 200MB of data for use in the U.S. If 200MB is exceeded, an additional 200MB is automatically provided at a rate of $15 for each additional 200MB. All data allowances, including overages, must be used in the billing period in which the allowance is provided. For more details on Data Plans, go to http://www.att.com/dataplans. Please note: AT&T is Apple's exclusive carrier partner for iPhone in the United States. An eligible data plan for iPhone is required. If AT&T determines that you are using an iPhone on your account without an eligible data plan, AT&T reserves the right to add an eligible data plan to your account and bill the appropriate monthly fee.