I am looking at vMobile. Anyone care to comment on it? I've read both positive and negative reviews. This http://nerdvittles.com/?p=9336 is making me lean towards trying it. Curious about the new S4 (don't seem to be able to purchase the S3 anymore) and also how smoothly the integration is. The devices travel in and out of wifi. Also, they will roam around the country. I haven't seen any comments about the service as far as roaming quality and pricing are concerned.