Hi, I was just trying to start widget developpement for phone. So I thought about the danbooru api :D
I used a 5800 to test it.. so I don't know if it works fine for you too. But I let here a link if you wanna test it, and give feedback
this widget allow, search and browse pictures/tag. It's sure not finished, but it's a first test. If there is interesting people for it. I'll try to make it better. (when I have time btw, I target a finished version that allow login, edit tags... etc... but for a first time test in javascript I think it's not so bad :P )
when a picture is clicked, the widget launch the phone browser for open it. (there will probaly have some bug with it.. depending of your s60 release)
the widget system is native on my serie.. dunno for the last nokia...
http://depositfiles.com/files/a6xq77s35
(first time i try Deposit file.. hope it will works for more than 10 users ...)
Updated