For your information, Getanid, there is product out: the Calxeda ARM server. Anandtech just ran a preliminary analysis on it.
Even though the Calxeda server doesn't perform like Xeon (yet), and isn't super inexpensive, still it is a milestone. I wouldn't write off the future of ARM servers like Gelsinger did. Those who say NEVER are usually blessed with block heads.
""ARM based servers hold the promise of extremely low power and excellent performance per Watt ratios. It's theoretically possible to place an incredible number of servers into a single rack; there are already implementations with as many as 1000 ARM servers in one rack (48 server nodes in a 2U chassis). What's more, all of those nodes consume less than 5KW combined (or around 5W per quad-core ARM node)..." ANANDTECH
You are talking about 5w vs 90w in the case of Xeon.