The official wallet can be run from the command line if you're comfortable with it and technical. I can give you some links if you're interested.
If you're not, right now the only thing released is eSteem, which is for mobile. It's maintained by and he's also working on a desktop version. The website itself is the wallet for the bulk of the userbase, but most people with large funds use the command line wallet.
RE: STEEM wallet