Yes (3 weeks ago). However when they wrote post about new hardware it was told, that new Linodes will start to land there after a week. It would be only reasonable, that after 2 extra weeks and migration to get extra RAM, Linode would land on new hardware. However it looks like it will take a while.
I'm not as much after more GHz from new CPUs, but rather than new hard drives which should be faster than old ones.
Will wait. :)
~1min in queue and 5min to migrate 512MB to 1024MB.
However I'm still on old CPU. :/ Intel(R) Xeon(R) CPU L5520 @ 2.27GHz 8 cores Memory 1001 MB real