If you're interested in the guts and gore that involves VMs, or re-implementing Perl, or implementing other languages, or hanging out with or helping those who do, you might be interested in MoarVM which "reboots the whole VM idea for Perl, based on experience with Parrot, without many of the flaws of Parrot".
It looks like most of the current action is on the IRC channel #moarvm on freenode.net (for which logs started earlier today).