Thanks for all the e-mail and all the IM's reminding me that Twitter would retire the use of basic authentication (username/password) in client applications on 30 June 2010. After that announcement it was postponed to 16 August 2010 so there's still time... That's how I read the frontpage of the Twitter API wiki as of today anyway.
Nathan was the first to poke me and remind of it and ever since the reminders have been tickling in. Happy to see that so many are using TwitNotes and is using it enough to actually be bothered by it not working. I'm in the process of testing an OAuth approach using Scribe and hopefully the solution will be ready soon and in good time before the deprecation... :-)