Quicksilver used to be great, but then the main developer went to work on some dead end project for Google and abandoned Quicksilver. Is the project still alive?

It's too late for me anyway - I have moved to Alfred, the new kid on the block at the time, and like it much more (much less clutter). Plus, I can't trust the QS developer anymore after he's abandoned the project once.

As far as I know, Quicksilver has been taken over by another team, and is in constant development at the moment.

I know because I regularly see "Quicksilver has been updated" messages ;)