Rob from SkyDemon here,
I have personally made comments about the deterioration of android devices over time (so it may be me that ericferret is remembering), specifically when the Nexus7 first came out and we were seeing some shocking variations in performance between ostensibly identical devices. This problem is much less of an issue nowadays since non-iPad tablet makers have had to step up their game in order to compete with Apple.
This, coupled with the fact that we have been relentlessly working on android stability within the app, has started to make some android set-ups quite compelling. In fact, we were astonished at the performance we were able to get out of a Tesco Hudl when we got our hands on one recently; while it isn't as smooth/stable a ride as an iPad, the low hardware cost (<£100) makes it a serious consideration - plus, there's not as much remorse when upgrading to the newer model in following years...