In case you haven’t noticed, Google is running a promotion giving out some of the most popular apps from the Android Market up for just $0.10¢ each to celebrate hitting 10 billion downloads from the Market. This has been a huge hit with Android fans but yesterday I realized if you have an older Android Market on your device, you could be missing out on all these deals.

Looking at the photo above the new market (right) front and center it shows the 10¢ apps and once you tap you see all 10 of today’s premium apps. If you’re running the old Android Market (left) like many from T-Mobile including my very own myTouch 4G Slide or other phones that for some reason still have yet to receive the latest Android Market you are missing out on all these deals. There are probably hundreds of thousands of users with old markets spread across all the Android devices.

My completely stock myTouch 4G Slide will NOT update to the new Android Market on its own and a quick Google search shows I’m not alone. If you happen to know what apps are being offered today for 10¢ you can find them, but you have no notification up top or any way of seeing them all in one neat place like the new Market. My friend kept asking what promotion I was talking about til I realized he wasn’t seeing them on his outdated Samsung Vibrant.

If you have the old Android Market the only way to see exactly what apps are on sale is the web market by clicking here. Don’t you worry though because we have you covered. Download the latest Android Market below and enjoy everything it has to offer (including Google Music) as well as these amazingly awesome 10 billion app deals.

Android Market v3.3.11 (new) — Download

Download that on your phone and install right over the old market and you’re good to go — Enjoy!