Nokia added it to the store, it can be downloaded from these locations officially:
Fixed web browser: http://store.ovi.com/content/241275
Nokia mobile browser: http://store.ovi.mobi/content/241275
Someone reported a bug where the rule will not do anything if it is just containing a time. I found and fixed this problem, an updated version will be available in the store soon. You can also download it from this link:
There appears to be a bug with the phone itself that results in increased battery usage. Unless Nokia fixes this bug, I think you should leave "use GPS" on. I will try to find a workaround.