Just that really. Yes the proposals are better than nothing at all and will of course provide support for those currently not able to access employer provided voucher schemes.
However, whilst I've only had a quick read of it during the course of the day, am I right in saying that to achieve the £2k per child saving you actually have to pay in £8k yourself? So for anyone on the existing scheme, whether they are a basic or higher rate tax payer, would be better off sticking with that (at least for one child - granted this new scheme does in theory allow you to save more if you have more than one).