I am in me.uk for a while and done some research on me.uk's performance. Let me share it with you now.
1. me.uk in SERPs is doing better than .org.uk. Many people might think it is not true, but me.uk has to be handled correctly. Lets take a hypothetical domain wine /co/org/me. Now, what many users are looking at is how the keyword wine performs on G and Y. This is not a correct way to treat me.uk. In fact you should look under slightly different angle. And my tests show that "dual keyword" works different, e.g. if you have pages titled red_wine.html then co and me are virtually at the same level for the keyword "red wine" and org is behind.
2. PR gives me.uk a head start. If all our domains have same PR of, let's say 2, then "real" PR for co is 2, for org is closer to 1.7, and for me is around 2.2
3. me.uk is useless in B2B but in B2C works good.
me.uk should not be taken lightly. Type-in traffic is not the "king" if you don't own a "super generic" like money, health or similar. Organic SE traffic generated by me.uk outperforms org.uk. Therefore real-life businesses would eventually recognize it.