hi daniel - i think i've understood where's the fault (even i don't understand why...)
the first time i made some mistake of spelling -just naming the library Tiuo instead of tuio (yes, you can laugh :) - but the second time i found…
..very cool! but, unfortunately, it seems that nothing happen when i run it. i use grasshopper 0.8 and processing 1.2, maybe the problem is in a version conflict?
thank you very much
marco