Neat! I'm of the opinion that journalism, open source development, etc. would be much closer to self-sustaining if only users had the option of dropping a quarter in the hat — performing a one-click micropayment — when visiting a webpage. I'm not likely to subscribe to the NYT, but I'd gladly pay 25 cents after reading a great article if it didn't require entering CC info and bouncing between three different webpages. Unfortunately, this would require immense coordination between web standards, browsers, OS vendors, and banks to implement. Taler sounds like it's targeting a similar use case; I hope it sees wide adoption so that at least the idea could be tested at scale!
(Sadly, with most traffic coming from mobile these days, I'm not sure how well the wallet concept would play with iOS's closed ecosystem. Is it against the App Store guidelines to release a wallet-type extension? Sigh, I miss the days when hacky tech like Napster and BitTorrent would set the world on fire without anyone having to gatekeep...)