I've got two bookmarks for ITT - one for the Mobile II style and another for the full fat (default) style (which I rarely use nowadays).

Mobile II New Posts bookmark
N810 v2 New Posts bookmark

Why let the site choose based on device? Just bookmark which version of the site you want to see. Fortunately the site remembers the preferred style in a cookie so I can happily view the site using Mobile II on the N800 and full fat in a desktop browser without any confusion.