Enjincoin (ENJ) : You basically have a blockchain for gamers, here. based off ECR20 protocol, it permits to have your in-games items in a wallet, on a smartphone for example. Then, you can trade your items easily with your friends, using only theses wallets. So, imagine a pokemon-game, well, every kid will be trading pokemons during break time, via this. You don't have to log-in to access your inventory, it's there, on the blockchain, ready to be sent. No more risk to get ripped-off your virtual gold by a random chinese farmer. He now needs your private key, good luck with that. They are planning to be introduced in World of Warcraft, Dota, CS/GO, teamfortress, etc... Lots of SDKs will be released for Android and iOS Swift, too
The compagny is know to be a website/server hoster, with currently 25M monthly users. So, they know what they are doing. ICO is still on the go, but almost done
Electroneum (ETN) : a new blockchain made by the ETH team, designed to be the next mainstream cryptocurrency for mobiles and smartphones. Pay your bakery goods with your smartphone AND with crypto-coins ! Well, beside being cool and all, it's actually a really beautiful altcoin, that adapts Ethereum to the mobile platform. You can mine and shit, using only your mobile CPU. I advise you to read their whitepaper and all, it's worth a eye.
I think that's about it for now. ICOs doesn't last long by definition, so, that"s the kind of things that tend to be not-so-hidden after a while.
Given the fact that theres respectively 60k ETH and 15k ETH invested in each of theses coins, I thing the word has spread already