Can the USB modem be sharred among say two laptops. I'm talking with one contract. And if not, Why?
If you're simply looking to hand the USB Modem back and forth, yes, that's entirely doable with no problems.
But, if you're looking to connect multiple computers at once, you'll have to get a wireless router.
I'm doing this myself, and I'm getting the MBR1000 Wireless Router ( http://3gstore.com/index.php?main_page=product_info&cPath=35&products_id=765 ).
Seeing as your example mentioned only two computers, the CRT350 may work better for you price wise. ( http://3gstore.com/index.php?main_page=product_info&cPath=35&products_id=610 ). Make sure to check the final price in check out, they're cheaper than the original price displayed. Even more so if you bundle it together WITH the USB Modem.
The USB760 Modem is also free after a rebate, so huzzah for financial winning.
That's what I did and only had to pay about $178 for two products that should have cost me around $350.
Here's a video comparison of the two routers, which is kind of sparse on information but does give you a starting point to think about. http://moremobileinternet.com/kb/entry/27/
Also, there are two other models listed on the site, check those out and see which one works for you, if you go that route.
I hope I was able to answer your question, I'm still new to all this myself.
Sorry to go on about the router information, I get the feeling my first sentence answered your question. But just in case, or for anyone else that wants to know, I left it in.
Anyways, have a good one,