In my opinion ROM Manager is one of the greatest apps ever created. Before i go on with this review, i want to mention that Rom Manager is only for rooted devices. ROM manager makes your life so much easier because it does everything for you from flashing ROM's to installing custom kernels, themes, and creating backups of your current ROM. Rom Manager comes in two versions: Free and Premimum($3.99). I highly recommend you guys buy the premium version, the premium version gives you a bigger ROM list and also supports OTA updates for your ROM. Rom Manager has a simple, easy to use user interface and it supports all the wonderful ROM's that are out there. As you can see, the ROM list is huge and it is updated often. I am able to jump from ROM to ROM with ease and get all the updates with just one click. The first thing you are gonna see when open up the application is this screen: "Flash ClockworkMod Recovery", is a custom recovery created by Koush. ClockworkMod has Nandroid, which lets you create and restore backups. Here is a great writeup on Nandroid: http://wiki.cyanogenmod.com/index.php/Nandroid_backup. Once you flash ClockworkMod recovery, you can move on to downloading and installing your favorite roms. "Install ROM from SD Card" lets you find and install ROM's that you have downloaded straight to your phone(saved somewhere on your SD Card). The "Download ROM" option lets you download and install a ROM from Huge list of available ROM's. The "Check For ROM Updates" lets you get updates for your current ROM. The "Backup Current ROM" lets you create a backup of your current ROM, you get to name your backup which makes it easy to find when you are trying to restore. The "Manage and Restore Backups" is mainly used to restore backups. Quick tip: latest backup is always on the bottom. Also i had Force close problems with certain apps, and the "Fix Permissions" option took care of all my problems! In conclusion, I love the ROM Manager application. It is easy to use and makes me love my phone even more. The app can be found in the market, and i highly recommend that all you rooted users check it out! Rating: 5/5! Must Have App!