[mikets]

Excellent info. I just checked T-Mobile and they have a pre-paid mobile web plan. You pay $100 upfront to buy a device. I guess you may be able to skip it if you have your own device. They have a $10/7days for 100 MB plan or $30/month for 300 MB plan. The nice thing about it is you can stop after season ends. The SIM card is valid for 365 days but then you can purchase another week or month pass the next season. You can do week to week or month to month so you can fine tune the precise amount of time you need it.
http://www.t-mobile.com/shop/plans/p...roadbandpasses
Verizon and AT&T also have similar plans but more expensive.
http://www.verizonwireless.com/b2c/m...nd/?page=plans
http://www.wireless.att.com/cell-pho...s/netbooks.jsp