StarTunes or iBucks...

Living a good 30 miles from the office, I work alot from my friendly neighborhood Starbucks. I use their wifi via the wonders of T-Mobile. The welcome web page allows you to download different Starbucks "mixes" from iTunes. But wouldn't it be cool if there was a pop window that displayed, in real time, the actual songs playing in the store, and you had the option to purchase that song from iTunes in real time. Hmmm.....