Just found this about Easyjet, couldn't help wondering if it is leading to the same thing as Ryanair, that is in time not having hold luggage.
Also after the previous post here, it outlines their allowable dimensions for cabin luggage.
Airline bags big luggage allowance Jul 10 2004
By The Evening Chronicle
easyJet this week announced another pioneering development by introducing Europe's most generous hand baggage allowance. It will be better than that offered by any other airline in Europe.
From Monday easyJet is removing the weight restriction on hand baggage for all passengers. The only stipulation is that you must be able to lift your bag safely into the overhead lockers yourself without assistance (or giving yourself a hernia!), so the weight must be within reason.
In order to comply with safety regulations of the UK Civil Aviation Authority, and to reflect the limited space in the overhead storage bins, there will be a size limit, which means that your bag must not be bigger than 55x40x20 cm - but this is 40% bigger than the current allowance and will give passengers the freedom to carry more than they can on the Club Class of traditional airlines.