Does the use of ICT in the classroom enhance the thinking and learning?

I have just been reading an article by Terry Freedman. He has been listening to a journalist, John Clark, at a recent conference he was at. John was obviously an interesting keynote speaker.

Terry points to four main points from the speech:

1. ICT has a number of important potential benefits for
education.
2. The degree of hype and misplaced funding has been such that the
potential real benefits are being obscured by illusory ones.
3. After massive funding in the UK over the last decade, the research
evidence about ICT's effectiveness in raising attainment is still either
superficial or ambiguous.
4. Much of the software we laud is actually anti-educational: it
institutionalises short attention span, and provides a raucous, cacophonous
environment which is anything but conducive to learning.

These points give us, as educators some points to ponder. As he says we need good research to provide the evidence that we are enhancing the thinking and learning - not just anecdotal evidence. Is anyone out there doing some research about this? I would love to hear about it.

Cheers
Di