Allow me, from me, to strive to convey a perspective on (Windows) OSs & continums. This ties directly w/ things that are said, written & thought, @ all & various stages of things.
>> 1 OS does not mean the sudden death or 100% loss of usefullness & value regarding OSs or hardware, already in place.
>> OS releases are 3 year intervals
>> (For the) Public OS release is GA
Now, not meaning to confuse... not mixing here what can be done or found w/ what should be.
>> Prior to GA there are 1 or more Betas & an RTM & OEMs & not for public consumption.
>> Betas are attainable by & to ppl who test, work w/ & report (findings & feelings) to MS; an on-going & intergal part of the build process for & of the GA. The source for stages & offerings leading up to the GA is from & through MS Connect, TechNet & MSDN.
>> MS, also, offered a W7 Beta publically.
>> Windows 8, also, a DP (Developers Preview)
Do not lean, too, heavily on the DP. The W8 DP is a sample, a taste & a tease, glimpse, a look into possibilities of Windows 8. It's not, even, @ Beta stage. Do not pass any sort of final judgement on aspects of Win8 based on the DP. LOTS may, can & will be changed, removed or added as we work & wait through the next 10 months or so. Nor are illiterations of a forthcoming OS, DPs & Betas, meant for daily, "production machine" or primary drive use.
>> GA for Windows 8 is late 2012
>> W8 is not very hardware demanding, not forcing upgrading of gear.
>> W8 can do TOUCH BUT, does not require it!
Not sure I've best expressed this or what I'm wanting to say, that I sense needs to be clear or clarified; @ least not w/out more details or being more explicit. Spose I'll hear...
Regards,
Drew