The days before the release in October 26th last year, it seemed that the developers still had to improve the quality of the product by issuing the updates to the Metro apps and the operating system itself. For the OS itself, there was a GA cumulative update for both Windows 8 and its server variant. It brought the improvements to power efficiency, audio and video playback as well as application and driver capability and applications and the start screen. Perhaps the computers in the shop running Windows 8 should already be patched with these improvements when you're going to buy one of these.
Also, the Metro apps would be updated before the release in October 26th last year to ensure smooth shipping as well. Perhaps, it was a good time that the developers checked their work before releasing their product to the market.
I remembered that I discovered certain third-party tablet computers running Windows 8 or perhaps RT and it seemed that Windows 8 was more of a recommended choice than RT for extended capabilities as most of the Windows tablet devices come with the laptop sized keyboard with the touchpad as the workaround probably due to the unacceptable existence of the desktop mode whose interface is still as small as ever and things are still not touch-friendly that way. Also, where the hell was the Microsoft Surface tablet the last time, huh? I expected it to be released in addition to Windows 8 itself but all I saw was the third-party ones. Lastly, Microsoft Surface Pro will be released sometime this year and it may look even better than Surface RT by the way but the thing is, there was a claim that Surface Pro is for business use while Surface RT is for consumer use. It doesn't matter anyway as the customers are likely to be aiming for the third-party Windows 8 tablet devices or perhaps the Windows 8 desktops/laptops.