I agree with the point about how projects not being ported to 1.9 begin to look unmaintained. It's been 3 months in stable now, and a year of betas before that - I can't help but start thinking any project not moving as fast as possible towards compatibility might not be one anyone should be relying on.
Most unforgivable offenders: Mongrel and the DB libraries
Most pleasant surprise: RMagick!
Perhaps more importantly, a lot of us are waiting for Rails 3.0 to move our existing applications over since there are huge risks and pains with shifting to a new version of a framework from something that currently works fairly well.
Admittedly, it wasn't that much of a problem with web, most of my "fun" from 1.8 has been with long-running processes. If you're not running them, or trying to run them I should say, there would probably be a lot less urgency - although it is faster in general anyway, so might be worth a bit of pain.
So yeah, not yet. Soon, though.
Regardless, it was a breeze to set up, and seems to be running great.
It looks like a lot of effort was invested into this -- I wonder if they'll be able to make money.
On their site, I see some Ubuntu packages which would probably work. But once I get to the point of "probably work", I might as well install the gem version.
I think Kirk Haines is looking after Mongrel now.