The Steam Machine and Steam Frame are probably delayed, but they still intend to release them in the first half of this year.
They said they planned to have a concrete launch window and pricing by now, but hardware pricing/shortages have made that hard to pin down.
I feel the same way. They must be adamant that they need to all launch at the same time or something. I think they should just release the controller ASAP, but they probably have a logistical reason not to.