Google Desktop and Google Talk

I'm going to make a quick comment about Google Desktop and Google Talk.
Google Desktop is a really neat program...it indexes your whole computer, so if I am studying for my final exam and need to find something quickly in my notes, I just type in whatever I want, and in seconds it displays the file that has the information I want in it. It can do the same thing with emails. It also has a neat feature which as part of the new Sidebar which has a To-Do List. It also will keep track of RSS feeds (blogs). However, on two occasions, the To-Do-List items along with other features of the Sidebar, have crashed, and all of my To-Do-List items along with my customized blogs have been lost. So, the Sidebar feature is somewhat useless right now.
I'm honestly not sure what Google is thinking with Google Talk though. Aol Instant Messenger has such a huge market share, and Google Talk really does not offer anything new. Google Talk, for all its hype, is a very barebones instant messenger client. You can only communicate with Google Talk users (no one I know is a Google Talk user), and you can't do file transfers at all, and although you can have voice chat with your computer, a cell phone will do the same thing, and is much more convenient to use. If they can persuade AOL Instant Messenger to work with Google Talk, then I might consider using it, but until then, I think Google Talk will get nowhere, because it does not do anything new.