There's a very good US Cellular sub-forum where you can get granular level assistance on the particulars of the US Cellular branded smartphones running Android. That way you will get the skinny on what sort of networking/VPN options exist for you. FWIW, each carrier has certain features of the ROMs they load on their handsets that aren't always shared by other carriers. Here's the link-

http://www.howardforums.com/forumdisplay.php/185-USCellular

hth,
Pedro