prerequisite reading:
http://cryptofresh.com/
(bitcoin 2.0 for dummies aka: why BitShares still has a consistently higher market cap than NXT or XCP)
But what bitcoin 2.0 projects are not scams? Here is Vitalik telling you where you can invest in an interesting set of crypto strategies today "that can be promising" (before Ethereum launches their Proof of Stake coin in March):
https://www.youtube.com/watch?v=aVsA2WGGAfo
"the one"
https://blog.ethereum.org/2014/12/17/ethereum-d%CE%BEv/
"we’ll be upgrading to PoS in the Not-Too-Distant future."
How trustworthy are the devs behind your favorite coin? Vitalik is a crypto-god:
http://www.coindesk.com/ethereums-vitalik-buterin-wins-world-technology-network-award/
Until the volume comes back:
This is a good experimental math test for those looking to diversify from bitcoin 1.0 tech into bitcoin 2.0 tech. It is what bank fiat specialists call a bank (crypto coin) stress test (to make the math lesson simpler for the wall st brokers who are scratching their heads looking for an entry point based on math to tell their bosses and get promoted to head of the Winklevoss crypto division). The Winklevii won't be 2015, it will be that bitcoin 2.0 guy.