[pbnjay]

Looks like they did:

http://maroslaw.github.io/rainyday.js/demo012_3.html

[starbugstone]

That patch of blue sky on the right doesn't feel quite right and takes the realism out of it a bit.

I know, just me being fussy. Impressive use of canvas though, it could be really nice as an appeasing background image on a site. Using the navigator geolocalisation and a weather site we could have a weather sensitive site. Have to test resource wise and see.

[mikeg8]

That one looks much less realistic to me. There were no long streak from drops that slid all the way down.

[TomatoTomato]

It resolves the overlap, but doesn't combine the drops into a larger single drop.