At this point, expecting Amazon to actually divulge genuine numbers surrounding its Kindle business would be akin to expecting that so-called "fiscal cliff" to just vanish overnight. That said, the company's playing a little less coy than usual in a new press release that announces A/B testing capabilities for app developers. The useful nuggets are here: app downloads in the Appstore have grown more than 500 percent over the previous year, and the number of GameCircle enabled games available on Kindle Fire has more than doubled since the launch of Kindle Fire HD.
We're also told that total downloads of the SDKs for In-App Purchasing and GameCircle have more than doubled since the Kindle Fire HD launch and availability of the Kindle Fire HD development resources, while the number of devs with In-App Purchasing incorporated in their apps more than doubled in the third quarter of the year. Of course, it's hard to draw any serious conclusions without knowing a serious baseline, but much like another company in Washington, it seems that blasting out hard figures is something reserved for those "want-to" moments.