The same problem with me!
I run TrackId on my Sony Ericsson Aino and on the browser appears this:
TrackID(tm) is a Sony Ericsson and Gracenote service.
Due to terms & conditions, we can only allow Sony Ericsson phones.
sonyericsson.com. We too think it's a great service :-)
Any idea what does that mean and how can it be solved?