Oh don't get me wrong, Me and Kryptos have always been on good terms, but could be a good New Years resolution.
Anyway better stop going off-topic before I get warnings.
o/
Oh and @Brontos have a check at the source code and compare it to others.
To some sort of extend I guess, Yes? The database is pretty much fucked and the networking... Don't get me started on that. I wouldn't call it a successful project.
I highly doubt it, only quite a few people I know that work on Habbo now anyway. Habbo is pretty much 'dead'
Mikkel works on Unity time to time. The rest have gone different paths, I can only assume that they work on projects that are of the same language.
That version of Rev was completed 6 months ago, but it was buggy as fuck and pretty much basic overall so It was never pushed to my git. I do have a private version which stated before that I like to experiment on.