TS;
Only according to the B777 AOM, (I'm 340/330 qualified, not B777), the Captain's flight instruments are available on standby power if there is battery only available; if the RAT generator is available, the F/O's flight instruments are also available.
This has been quite a beginning to 2008. Three major incidents, no fatalities thank goodness, and superb, professional performances from aircrews all around, notwithistanding original causes which even today are not known or at least made public.
Random or a pattern? Aviation, especially the large transport sector, is so safe now that establishing patterns with so few data-points is difficult yet in the end this question is going to be asked and when deeply examined enough, "random" causes give way to reasons.
It's already going to be an interesting year for safety people. Let us hope that it gets no more interesting.