"A Rails form builder plugin with semantically rich and accessible markup." This looks like it could be really, really good; will be trying this out in anger shortly, I hope. (I hate Rails' form helpers with a passion).

"This page will maintain list of AI related libraries for the Ruby programming language." Some interesting stuff here, although it's all in varying degrees of maturity...

"Gemcutter is the next generation of gem hosting for the Ruby community. Instantly publish your gems and install them. Use the API to interact and find out more information about available gems. Become a contributor and enhance the site with your own changes." Apparently this is the next big thing, post-github not serving gems. Let's chase this trend for a bit.

"...it’s been a week and we’ve decided to not bring back the gem builder. It was a fun experiment but Jeweler and Gemcutter combined make it ridiculously simple to publish a gem. The gem builder use case (fork a project, make a change, publish a gem, install it) is now easier than ever using these tools." Which is all very nice, but a bit of a PITA for anyone who'd been depending on this. Still: gems.github.com will serve for another year.

"Local devs, running local services, but how to share with everyone in the room?" Answer: rebuild all your tools to work across Bonjour. Slightly bonkers but very cool.