UNO™ HD by Gameloft has gotten a price drop to $4.99, now UNO™ HD is Gameloft‘s iPad specific version of UNO for the iPhone and iPod Touch. No word from Gameloft if this is a permantent sale or a limited time only sale. The game features:

All your favorite Action Cards are here: Wild, Reverse, Draw 2 and the rest!
Play multiplayer with up 3 friends gathered around a single iPad, or with everyone using their own devices connected locally via Wi-Fi.
Gameloft LIVE! support: Go online to play 24/7 with people from all over the world (through Wi-Fi connection).
The game allows you to customize the rules and discover many new ways to play UNO™, like “UNO 7-0”, “UNO Challenge”, and “Jump In”.
Progress through increasingly difficult challenges in Tournament mode to collect prizes and unlock up to 8 colorful deck themes to give the game a fresher look.

You might want to pick this up as-soon-as-possible, only because Gameloft hasn’t released any info on if this is a permantent sale or for a limited time only. UNO™ HD costs $4.99 and weighs in at 69 MB.

UNO™ HD on the App Store.