lucy24 - 9:06 pm on Aug 12, 2013 (gmt 0)
Wow. Didn't realize the UA even went back that far :) My own data collection only goes back about two and a half years (Feb/March 2011). And only the last year-and-a-bit is available for immediate searching.
Within that time period, the first appearance of the UP.Browser (in any form) was near the end of 2011.
I don't know what the story is on Googlebot-Mobile. UP.Browser seems like it would be an older UA, but I never met it before the end of August 2012; before that I only got the SmartPhone.
:: detour to check ::
Huh. The third mobile UA, DoCoMo, seems to have shown up at exactly the same time. Wonder if the SmartPhone version found something that triggered closer inspection? Maybe that's when I started making the CSS more responsive.
So when you say 2002/03 do you mean only from that time period, or dating back to that time period?