If you own a smartphone by Samsung running either Android or its own Bada OS, such as a Samsung Galaxy S (II) or Wave, you've probably come across the Kies software.
Kies is similar to iTunes in that it is used to synchronize your smartphone with your PC, check for firmware updates and so on. What is also similar, no, worse than iTunes is its bloat: almost everybody who uses the Kies software hates it because it's so slow, full of bugs and unstable. However, it's possible to check for firmware updates without starting Kies, thanks to an app called Check Fus that's available on the Android Market.
You just install the Check Fus app on your Samsung device, and then it automatically determines your specific hardware model and checks whether there are any applicable firmware updates. This way, you won't have to start Kies at all!