Hope this hasn't been done to death. On my BlackBerry I used to use ReQall to set calendar events by ReQall's voice recognition. It worked pretty well and understood words and phrases like "tomorrow," "Wednesday," or "next Saturday"; but it could take an hour or more to sync with the Google calendar (and the syncing costs about $30 per year). ReQall for Android is still fairly primitive, so I was looking about for an app that would recognize an event in the form "dinner next Tuesday with Jen at 6 pm." The Market did not have any promising candidates. Then it dawned on me that such functionality is built into Google itself. By sending an SMS to GVENT (set this up on your Google account) you can use SMS together with the phone's voice recognition to add such events by voice. Having set GVENT as a "favorite," it takes only 4 quick taps (and no screen scrolling) to add an event on my calendar, and the synchronization is nearly instantaneous. Much better than ReQall, IMO. This is, for me, much easier than manually setting the date and time settings in the phone's calendar app. Hope others might find this useful.