Palm’s Treo 650 smart phone has spearheaded Palm’s smart-phone business since its debut in the 
US in October 2004. Still, it’s looking long in the tooth, especially after Palm shipped the Windows Mobile-based 700w and its Palm OS sibling, the 700p, earlier this year. But rather than ditch the older product, Palm’s re-modelled it as a new handset, the 680, pitched at a lower price…
The new incarnation of the 650 sports the same design as the recently released Treo 750v, but tweaked a little to suit the Palm OS better. While the 750v has a pair of soft-menu keys for Windows Mobile, on the 680 they’ve become the call make and break buttons. What on the 750v are the call keys and the Windows Mobile Start menu and OK buttons are here four application keys: Phone, Calendar, Messaging and Home - the latter taking you to the OS’ apps menu. Palm Treo 680 smart phone | Reg Hardware