Bleary-eyed, but it's released. Truth be told I'd rather not release it right now, but, since Mozilla went ahead and released Firefox 4 I felt I had no choice. Version 3.0t3 is, at this point, more or less the successor to LastTab 2.2 so I'll be releasing it on Mozilla's Add-ons site...
I've been noticing more people coming to my blog using Firefox 4. There is a version of LastTab compatible with Firefox 4 on my web site . I haven't made it available on the Mozilla Add-ons site because I've discontinued work on LastTab 2.x series in favor of 3.x. I haven't considered...