The website used to do it, but they've apparently removed bookmarking from the website with the new version. The current android app still supports it, and on the website you can still view songs you've bookmarked and ones you've liked. I'd just like an easy way to save songs and look at them later, would it be possible to just read the song data and save it to a file?

edit: did a quick search and there appears to be bookmarking track/artist data in piano.c. Also, updated to 4.1 and still smooth!