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