Last week I mentioned that the Acer Iconia Tab A500 would be getting an update to Android 3.1 officially in Germany and a few other places on July 5. The launch date for the US and many other places has yet to be offered. If you want Android 3.1 on your A500 and you don't want to wait, you can get it right now via two new ROMS. A leaked official Android 3.1 build landed in China last week and has since been put up on XDA Forums.
Several geeks took Android 3.1 and made their own ROMs for the A500 with two of them being dubbed HoneyVillian and Minimalist 3.1. The leaked version of Android is official with multiple language support and Google apps available as well. You can download Minimalist 3.1 here and HoneyVillain here. If you are the sort that just likes the essentials Minimalist 3.1 might be the ticket for you.
The maker of that ROM says that everything is stripped out other than essentials for speed and stability. The author also notes that most of the frameworks were deodexed to allow the users to make custom skins and other mods as they want. If you applied the ROM early on you might want to be sure you have the updated version that fixes an error that didn’t set permissions for superuser access.