The Labour party is being far more dishonest by commissioning the Browne review and then attacking the Tories for taking it up.
Anyway, Maniac, with regard to the Lib Dems, that is how a coalition works. Both parties have to concede some points, and do so in a way related to the support they gain from the electorate. That is why the Lib Dems back proposals that they were not originally planning to support at all. The conservative party has ditched some of their proposals too in forming the coalition, why don't you harang them about that too?
If we were going to get a government, it had to be a coalition, and that meant compromises had to be made. Furthermore, the proposals are actually very generous to students (if anything, too much so), who will find no fees whilst at university, and lower repayments when they enter the job market (making getting housing easier, for instance). They also gain more opportunity to demand that the university be accountable to them since they control where the funding goes. The only downside they face is having to repay for longer, up to a limit of 30 years, which is irrelevant for graduates who earn a substantially greater wage than non-graduates.
RE aircraft carriers, the MoD had its assets in a mess, and it made more sense to finish the construction than to incur penalties for cancelling contracts, particularly since there would be the opportunity to flog them, say, in the future.