With the amount of details being handled and
layed into OS4, its going to run circles around
every existing os out there 
Nothing personal, but I always loved the ppl like you "to know it for sure " and take it as "given" and "granted", despite you haven't even seen it or know about it, and consider it's competing OS half baked and unusable, even when most of you haven't seen it. As for me I'd like to see OS4 first before making any judgements.