HTC’s KIES tool is a very common method of syncing and updating HTC phones, ESPECIALLY outside of the US. A lot of European Galaxy S phones have seen updates to Froyo or maintenance releases, for example, that are only available via the KIES utility. KIES has been running in a beta form of 2.0 for a bit now, but it has finally been finalized and 2.0 has been made “official.” For our non-US readers who use, or may want to use, KIES, you can go ahead and grab the update from the official site.
I’ve never used this utility myself, but have read mixed reviews. Love it, hate? Let us know in the comments if you’re a KIES user.