When it comes to buying clock apps for your BlackBerry smartphone, no-one does it better than our very own CrackBerry Kevin. But this app is more than just a clock app -- in fact it doesn't even tell you the time. It is more of a countdown clock and a timer (though not just any timer). It goes far beyond that and it's also made for the BlackBerry PlayBook.

The Talk Clock App has been developed for use by conference and events organizers. It has three functions that will aid in organizing the smooth running or events and conferences.

  • Timer - great for keeping track of talks, making sure they don't go over time. The developer also uses it as a countdown timer for hackathon events he runs.
  • Messages - Flash messages to speakers telling them how much time is left, or any general announcements you would like to make during events. This would work well with the PlayBook hooked up to a large screen.
  • Raffle - of course at some events, people like to run raffles. I know a handful of events I attend always have this and this takes it to another level, instead of the old school pick a number out of a hat.

All in all the app looks very useful and the UI is pretty cool too. A nice touch is the fact that you can make the messages and countdown blink red. You can check out the video above to get a quick run through on how it works. Talk Clock is available for the BlackBerry PlayBook for $1.99 in App World.

For more information and to purchase Talk Clock for BlackBerry PlayBook