I think Factom had a good idea and im not sure if you can call it vaporware, it's yet to be proven that it can survive tho, once sidechains are deployed there will be ways to do that under the Bitcoin ecosystem.
Well it's too early to say that now, and it doesnt have any concrete example of functionality yet.
We need to wait more until it becomes established. Maybe it can be linked to bitcoin via sidechains and create some partnership there.
We need concrete examples first. This is just theory at the moment.
Maidsafe is another great project that I think is undervalued, but has to demonstrate some things yet before I considering investing big time.
ETH has also to prove that it can scale his horribly big blockchain.
Overall just invest in Bitcoin, it's the best investment right now.
Maidsafe is being worked on right now, and it still needs a lot of more development before it becomes operational.
ETH is already operational but it seems like its in a bubble now, it also needs more development, but i added it to the list because its already operational, while other coins here are not.
