The Namecoin Wallet has been created and published:

https://play.google.com/store/apps/details?id=hashengineering.namecoin.wallet

Blackcoin Android Wallet App – Full Blockchain on Device

http://www.cryptoarticles.com/crypto-news/blackcoin-android-wallet-v2-available-for-download

Source for wallet app: https://bitbucket.org/janko33/bitcoin-wallet-4.16

Source for blackcoinj:  https://github.com/janko33bd/bitcoinj/tree/blackcoinj

Peercoin Android Wallet App – Uses Centralized Server for Getting Transaction Info

http://www.peercointalk.org/index.php?topic=3331.0

On Google Play: https://play.google.com/store/apps/details?id=com.matthewmitchell.peercoin_android_wallet

Android app on Github: https://github.com/MatthewLM/peercoin-android-wallet
Peercoinj on Github: https://github.com/MatthewLM/peercoinj
Explorer on Github: https://github.com/MatthewLM/PeercoinAbeExplorer
Peer4commit Project: http://peer4commit.com/projects/129

Donate: PHYsT4HACNAyjEou2x9ufopGKuRJJAfeYT

Base Code

• Bitcoin Wallet 4.00 or higher (https://github.com/schildbach/bitcoin-wallet)
• Bitcoin Wallet 3.00 or higher (https://github.com/schildbach/bitcoin-wallet)
• Bitcoin Wallet 2.00 or higher

Bitcoin Wallet 3.00 and up

1. Bitcoin Wallet 3.x
   • Zetacoin

   Bitcoin Wallet 4.x

Litecoin Wallet (Litecoin Dev Team) – Forked from Bitcoin Wallet 3.30

1. Auroracoin
2. Gaelcoin (HashEngineering consulted for Genesis Block configuration)

Dogecoin Wallet (langerhans) – Forked from Bitcoin Wallet 3.x

• Reddcoin
• Leafcoin
• Dopecoin

Digitalcoin Wallet (HashEngineering) – Forked from Bitcoin Wallet 3.x and 4.x

1. Franko [FGW] (HashEngineering)

1. Megacoin [KGW] (HashEngineering)
   1. Vertcoin (broken at Lyra2 fork)
   2. Einsteinium (offline)
2. Infinitecoin (HashEngineering)
3. Earthcoin (HashEngineering consulted for Transaction Comments)
4. Digibyte
5. Quark (HashEngineering)
6. Darkcoin [X11, DGW, DGW2, DGW3] (HashEngineering)
7. Myriadcoin [Qubit, Groestl, Skein] (HashEngineering)
8. GroestlCoin (Groestl 512 x 2) (HashEngineering)
9. VegasCoin

 https://github.com/schildbach/bitcoin-wallet/blob/master/wallet/README.forks

The X11 hashing algorithm has been translated to Java.  The Dark Gravity Wave and Dark Gravity Wave 2 have also been translated.  We plan to translate the other hash functions of Myriadcoin as well.

The digitalcoin Wallet now has been posted on Google Play.  Though we were the original developers of the digitalcoin Wallet (ported from Bitcoin Wallet 3.31, not the Litecoin Wallet), we were allowing the previous developer to take our code and publish it.  Recently we were asked to take over the development and maintenance of this wallet and it has now been published.

https://play.google.com/store/apps/details?id=hashengineering.digitalcoin.wallet

http://www.youtube.com/watch?v=R5jKGJtnlGk

On February 27th 2014, Federal Reserve Chairman, Janet Yellen testified before Senator Joe Manchin that the Federal Reserve has no authority to regulate Bitcoin or the Bitcoin protocol.

The Quark hashing functions were found and adapted for a fork of the Bitcoin Wallet 3.31.

This app should be available soon for beta testing.

A forum is being planned as a resource to help android wallet developers.

The forum has been established here.

A request was made for a Quark wallet.  After that we considered a SecureCoin wallet.  Both use the same six hash functions (blake*, bmw, groestl, jh, keccak* (SHA-3) and skein*).  Currently only three have existing Java code as far as we can tell.  If anyone knows about the other three hash functions, let us know.  At this point a Quark or SecureCoin Wallet is not possible.