Get unlimited data on Verizon Wireless ymmv
When i talked to the rep, at first, he was trying to get me to switch to a data plan that had data and mhs. This is not what you want, you want to have the mhs as a feature addon.
ymmv of course on these types of promos.
edit: mhs = mobile hot spot $30/mo addon feature. as said before, you can remove it any time and your unlimited data should remain.
The $30 is for the month, if, say you use it for 15 days, then it will be prorated to $15 and so on.
Edit looks like some are able to do it with 3G phones as well, unlimited data but 2gb mhs.