[EyeB]

virgin mobile has a $25/month plan for 300 minutes and unlimited data/text
It's the cheapest I've seen for prepaid plans with unlimited data/text

But it's a cdma company and it requires you go buy a phone from them... $150 for their lg optimus seems to be best buy for a phone but it's still a large amount to sink into a phone if you are trying to save money :S Well you could get their cheaper phones and upgrade later I suppose