Does anyone even know of a good mobile wallet? (I'm fairly certain the answer is no unless you're talking about a web wallet, which does not make sense to trust.) I think SPV/light client stuff just started working a little while ago. It's all coming, it will just take time.
(I guess you could always do a localbitcoins-type thing with a laptop, but a mobile ...
Since ETH and ETC have the same underlying protocols for address generation, the addresses will work on either chain. As long as you control the private key for the ETH address you sent the ETC to, you should be able to import that private key in whatever ETC wallet you use and you will have access to the funds.
If you do not control the private key for the ...
It is possible to create a decentralised broker Dapp (it helps buyers and sellers find each other, but does not take part in the transactions and does not bear settlement risk).
Creating a decentralised market where USD or EUR or other non-ethereum currencies are involved, requires trusted escrow(s), who accept participants money in USD and EUR and promise ...
You can check out https://localethereum.com/
Localethereum is a private peer-to-peer marketplace which allows you to trade ether for local currencies. Exchanges can be made via different methods such as online bank transfers and face-to-face cash trades.
In principle there is nothing stopping traders on "localbitcoins" from offering any cryptocurrency for fiat. Hopefully we'll start to see some direct fiat --> ether ads in the near future, but any such movement will be a market response to local demand for ether.
I found recently this. That is even better than LocalBitcoins as (1) escrow implemented using multisig and (2) is cheaper: 0.2% instead of 1%. But I know nothing about trustworthy of this service. Also I've not manage to test it out.