I've been keeping a list. Since 1997: Philips Fizz (1 year) Nokia 3110 (18 months) Ericsson GA 628 (briefly) Nokia 8110 (6 months) Nokia 7110 (1 year) Sony CMD Z5 (briefly) Panasonic GD87 (1 year) Nokia 8310 (1 year) Nokia 6600 (1 year) Nokia 6680 (1 year) Nokia N80 (1 year) Nokia N95 8GB (2 years) Nokia N900 (current phone)