It's a beta. It has limitations. For example, it won't index multiple disk drives on your system.

My fundamental complaint is that this product lacks the fundamental essence of Google. That is, it has no sense of link structure. It is a simple full text indexer. As many have already pointed out, existing products perform this function more effectively and with better and more complete system integration.

In time, they could migrate this product into a remembrance agent. That would present a good opportunity for Google's famed PhDs to demonstrate their supreme geekiness.

Here's to hoping ...

Google Desktop Search