As far as regional carriers go, C-Spire is a pretty big deal. Which makes it all the more surprising that the company hasn't offered standalone pre-paid data plans until now. The southern cellphone network now has three tiers of pre-paid access for your tablet or Mi-Fi, beginning with a $15 100MB package that expires after a week. $30 nets you 300MB over two weeks, while the top tier grants you a whole month's access and 1GB of data -- but will set you back a rather steep $50. Of course, there's always post-paid solutions for the more demanding, that start at $20 for 1GB per-month and go up to $50 for 5GB. For mo