Google Wave in IE, via Chrome Frame
If you want to use the new Google Wave in Internet Exporer, you'll have to install the Google Chrome Frame addon first. This ingenious plugin replaces the entire rendering area of the browser with code plucked from Google's Chrome browser.
Sidewiki is a universal commenting system for the Web. A new component of the Google Toolbar. Watch out: Digg, Stumbeupon, Reddit, et al.
Skype for SIP to Integrate with Industry-Standard VoIP Kit
Skype currently uses a proprietary voice-over-IP protocol. Integrating with the standard Session Initiation Protocol (SIP) should make it more attractive to businesses.
DateCheck Launched at DEMOfall09
DateCheck is an iPhone app that allows consumers perform background checks on prospective suitors. Its launch has prompted some comment as to privacy implications.