It was standing room only at last night's Atlanta Drupal Coffee Club. (We always forget to take photos until late in the evening after people have already left).
We discussed a wide-range of topics, but the leading conversations were around performance tuning and APC. It's usually one of the easiest things to add to your stack and you can see a quick gain. Even if it's not all that much of an improvement, producing a lovely graph with the apc.php file and all those green cache hits in the pie chart, will make you feel awesome. It's often a surprise when I run down the list of obvious things for a stack and there's no opcode cache installed yet, so +Andy Thornton and I did a "sales pitch" and showed the ease and obvious improvements you could get out of literally five minutes of work.
There was a bit of New Relic discussion as well, and that led to talking about both Acquia DevCloud and Pantheon. I also did a quick and dirty tutorial and comparison of features. I have to say Pantheon is winning some serious points with their free developer offering.
Also, thanks to Andy clearing-off some bookshelves, it turned into "giveaway night." People left a pound or two heavier by stuffing manuals in their laptop bags, as well as t-shirt thanks to Puppet Labs.
We look forward to seeing you next month at the Atlanta Drupal Coffee Club.