Hive Wallet!

Electrum is an easy to use Bitcoin client. It protects you from losing coins in a backup mistake or computer failure, because your wallet can be recovered from a secret phrase that you can write on paper or learn by heart. There is no waiting time when you start the client, because it does not download the Bitcoin blockchain.

Free Secure Source-Available Multi-Coin Multi-Asset HD Wallet for Bitcoin and Altcoins

Armory is an open source wallet management platform for the Bitcoin network. It was designed from the ground up to provide the highest level of security for heavily-invested Bitcoin users, while still maintaining a high degree of usability and convenience. Its ease of use and plethora of advanced features makes it one of the most popular alternative Bitcoin clients, and is featured on the main Bitcoin website, http://bitcoin.org/clients.html .

BitcoinSpinner is a light-weight, secure, and user friendly Bitcoin wallet for Android. It supports QR codes, password protection for opening the app, doesn't require the blockchain to be downloaded, has an address book and shows your transactions history.

MuCoWa is a multi-coin wallet application that is based from MultiBit and BitcoinJ. It allows you to have wallets in these coins (with more coming soon!): BTC (Bitcoin), LTC (Litecoin), DOGE (Dogecoin), QRK (QuarkCoin), FTC (Feathercoin), CGA (CGAnomaly) and DGC (DigitalCoin).

Dark Wallet will serve as a platform or a starting codebase to deliver a high quality Bitcoin that serves the people.

BitcoinDroid is a thin client for the bitcoin daemon. This app will connect to an SSL-protected instance of the bitcoin daemon and interact with it using the JSON-RPC API. Currently only queries for status.

Jaxx.io is a blockchain wallet available as desktop software, a mobile app, or as a Chrome extension