We plan to keep up with all of the vBulletin software updates. We are trying to work out a few more issues before we bring out more with the upgrade, but we'll get that up soon. We have a test installation of vBulletin, and we will upgrade that first. Once the bugs are worked out there, we will upgrade the main site.
For now, try Tapatalk on the iPhone. I use that a lot, and the majority of my posts are from there.