As of SVN rev 1477;
ical2vsdb has been updated to reduce the CPU load due to iCal::Parser.
This module is only invoked if the ical has changed. For google
calendar users, you'll have to enable the sync_dtstamp option for this
to work for you. I've also updated the google calendar integration
page on the wiki. Thanks again to Tom to help me troubleshoot this
get_email now supports IMAP over SSL (ie gmail).
handy_net_utilities.pl also sends email via google's SMTP servers if
the email account's service is google. I've added some sparse
instructions on the wiki.