I don't know about anywhere else... but where i stay, most of the physical stores have either run out of S2 stock (both 32 and 64GB versions), or completely discontinued sales of S2 devices, all within the last week. Only a handful of places (within 200 miles) have any left, and even then it's only one or two. Even Microsoft have sold out of the64GB versions...
Maybe i'm adding 2 and 2 together and getting 5... but figured an s3 may be being prepped for release.
Reading the tea leaves...
Then again it may just be mixed messages from MS causing a pullback or rumors of battery issues depleting supplies or the effects of the price reduction... then again price reduction might signal a coming update. I guess the beans will finally spill or not in due time and then we will know.
If they don't do a refresh they risk losing sales and traction in the market. You don't want to go into the holiday season with last years model going against all the latest from everyone else. They just have to make sure the new software six months out supports it (shouldn't be that hard). If your developing software you should have a darn good idea what hardware is available and its capabilities well before six months of completion.
iPad Air is rumored to get minimal updates ... A8, fingerprint, perhaps a side whistle... Samsung and everyone else SoC upgrades and spec tweaks ... if you don't follow suit expect sales to be sparse. Given Tegra K1 is the cream of the ARM crop this year a winner is in the box if you just ship it with a screen upgrade, and shave a millimeter or two off the thickness. Copy the Samsung Galaxy Tab S features or just OEM the device from Samsung, install WinRT on it with a Surface or even Lumina name badge. Done.
Then only mistake you can make is doing nothing.