Current geek toys/software I'm futzing with:
iwantsandy - a personal assistant; it doesn't sync to outlook or gcal though, so I'm not sure how truly useful this is other than reminders.
twittercal - a twitter hook into google calendar.
CompanionLink - a syncronizing product to sync LotusNotes (among about 10 other things) to Google Calendar
Jott.com - a voice-to-text service that will let you post to livejournal/blogger, get house prices through zillow.com, and even look up amazon prices.