The Clamshells are latchless, yes. They were great, rugged (and heavy) Macs. My brother still uses my 466, which has had a really good run. It has been dropped a number of times without incident. Do, however, be aware of the fact that they are limited by their 800x600 screens (with no VGA output) and their processor speed. At this point you may want to opt for an iBook G4 or even a Aluminum PB instead, since they're probably pretty darn cheap now. (I just looked - many 1GHz iBook G4s are going for around $300 on ebay.)