Your list, but for P2P currently only Bitcoin and Litecoin.
Why litecoin? That seems to be arbitrary.
I don't know that so many people would care to start edit wars over dead altcoins?
If you remove them I guess they'll just pop up on 'the list of all cryptocurrencies' instead
Although I think it's better to put up a link to xorxor's excellent list here, because the term 'digital currency' is too broad and vague. For example, you can probably make an argument that a majority of world's currencies are now 'digital'.