Being that they're typically set in huge expansive worlds, I'd imagine that Bethesda's games are an absolute nightmare when it comes to Quality Assurance. In my short time playing Skyrim I haven't noticed any bugs, but others have -- rest easy. Bethesda's Pete Hines has just tweeted that an initial patch is incoming, and it may fix some of the game's early issues.
"[W]e are continuing to work on an update for all platforms to address issues any bugs and perf issues we can," tweeted Hines.
Hines couldn't confirm precisely what bugs and performance issues the patch would address, but one may be the streaming textures issue on installed 360 copies; another might be frame rate issues with the PS3 version.
Bethesda weren't able to provide a deadline of final date for the patch.