hello, i wanna know what is ur opinion if avast could develop avast! portable(not the Avast! virus cleaner because it is limited to detect other virus)... as u know, there r many software can be installed into USB drive such as portable firefox, openoffice, DSL(Damn Small Linux- portable OS that can boot from USB drive)... i hope that avast! can develop an antivirus that can be installed inside a USB drive