I like the enhanced features like tagging and recommending. I wish that it could connect on a remotely running iTunes instead of just the one it is installed on. I use iTunes in a server/client style arrangement with remote control apps that allow me to store my massive music collection on a server and play it throughout the house or on my laptop. I would love to be able to run Last.fm.app on my laptop and have it "listen" or scrobble my server that is running iTunes.

No it isn't. It's a new application that Lastfm introduced along with their new site layout. It's Last.fm Player and iScrobbler merged into one.

Is this "Last.fm Player" ?