I've already returned an ipad air for a full refund...i am just not up to playing the exchange lottery when the chances of getting an evenly coloured screen seem so random. Add to that the whole safari crashing debacle, allegedly due to the 1GB ram on 64-bit architecture....and I think this is too much for my nerves to handle. Seriously considering getting a refurb iPad4 because it is a mature product, the last of its kind in terms of design and i think they really got it right. The iPad Air by comparison is the first of its kind and can only get better, so maybe it would be wiser to wait for the 2nd or 3rd iteration. Well, that's my thinking....any critiques?