I don’t know of a single tool to help you optimize the performance in a mobile environment. It get’s even trickier if you’re using native apps on the phone…how the heck can you measure and track the performance of those across the various networks and platforms.

So many problems…but so many opportunities to build tools to solve these problems. Where there are problems, there is money to be made.

Do you feel that the recent dramatic improvements in javascript runtime pushes out the need to focus on some of the things you mention as becoming more important next year? Ideally we’d be tackling performance bottlenecks from both ends of the spectrum, but I’m betting that if javascript execution gets to be magnitudes faster out of the box with the newer browsers, and complexity of the applications grows linearly (which is maybe the key question), developers will end up spending less time focusing on optimizing low level CSS and Javascript performance issues, and have more time to focus on the functionality (which feels like a good thing). Not to say that it won’t be necessary, but feels like the need by be pushed out at least another year for most businesses?

Great summary of all the good stuff happening.
Have you tried to work directly with the browser vendors to integrate your tools in their development process ? Or ask for new developer tools regarding performance ?

Have you also submitted bugs to different projects (like Apache, WordPress, Squid etc) ? If yes, what is the status of these bugs ?

I’d like to help with these things so that performance could be improved everywhere.