Since a few days, with the trunk version, you can easily know if there are attachments on a resource. The attachment button is different and the number of attachments is shown.
Since the 14th may, I'm 26 years old. But this is also when I began working for Tiny. And this is exactly what I'm going to talk about on this blog: how I improve OpenERP. I'll work on support (bug fixing) but also on code improvement.