Rolling on with Rollyo

Well, this is great. Everyone else seems to have finished Web 2.0 but I'll soldier on because there are a few more offerings I would like to investigate. Had a look at Rollyo and created a couple of search rolls and was pleased with the result. The interface, however, is a little busy for my liking and one would need to compile a comprehensive number of search rolls and continually update them if the aim was to use it in a library reference setting.