I've been working on 2.0 Addons and have made several changes and added new features/functions to help addon authors.
The main updates (that I will push to Github this week) allow installing addons in the Addon directory instead of only the ElkArte directory. This can help with organization. It uses the Addon namespace, so you add a directory under Addons like Addons\MyStuff and then in MyStuff.php you would use namespace Addons\MyStuff; filenames and directories need to match for the autoloader to work properly.
Also added a several functions to help work with the new menu system, basically helpers like insertSubsection() and insertSection() which allow adding new menu items easily.
Last post by Spuds -
Another one that has been updated to work with 2.0
I don't recall adding any new features, but did clean up the JS considerably since this version will only support 2.0. Improved its performance when there are large numbers of pins.
I did remove the export of KML map data feature as unnecessary bloat.
Last post by ahrasis -
Thinking of being active again, and this is basically where I think I am gonna start. Basically, this addon still works for 1.1.10 but I haven't tried the 2.0 yet. May be will go there soon.