I just got a pop up to buy a gem dispenser for 225 gems that gives out 1 gem every 12 hours. Has anybody else seen that?
In answer to some questions on the gem dispenser:
1. The item is permanent and you can collect from it forever, as long as you are in a supported version (see #4).
2. It will only hold a maximum of 1 gem. To get the most out of it, you should collect from it as close to every 12 hours as possible.
3. The gem does not expire if you do not collect it. It will just not accumulate any additional gems until it is collected.
4. It is only supported in iOS 1.7.6+. It is not supported on Android
Edit (KP) 12-2-16
The gem dispenser is no longer available.