What do you think of his GRID computing?
I will say, I'll answer this very carefully.
AFAIK GRID computing is like having a single, large virtual computer.
I'm really not sure what to think of this whole 'unifying thing', although the intention is honorable.
The recent articles on it left me thinking it is nothing more than load balancing on a cluster style system with replication between node networks.
The problem I see is that all my encounters with Oracle replication methods means a large possibility for many gaps in data and lags in processing. Our problem management system is on Oralce and the replication has been known to replicate everything but a handdull of records which magicly appear days later.