The day after releasing 0.97, after nearly 4 months of test versions being available, I've had two bug reports!
One of the bugs only affects Cacti users, and is a simple fix. The drop-down map selector is broken. To fix it, edit line 762 of weathermap-cacti-plugin.php, and change action="GET" to action=""
No doubt there will be a 0.97a in a couple of weeks, once a few more of these things have crawled out of the woodwork.