If you love Angry Birds, and you own a Windows Phone , then there's no reason to not try them out now as all of the Angry Birds games for the platform are now free to download and play.

It actually started earlier this year with Angry Birds Rio , and earlier this month both Angry Birds Seasons and the spin-off Bad Piggies turned into free games as well. Now it looks like publisher Rovio has made all of the current Angry Birds games free to download. This is apparently not a promotion but a permanent change.

Of course, we are still waiting for Rovio to release its latest game in the series, Angry Birds Transformers, for Windows Phone so there might still be a paid game in the near future.

Thanks to the many people who tipped us!