It may be a good idea to port your project to WinForms, as I can see that your C# programming style fits that more than WPF.
You caught me redhanded

. I haven't used WPF before this project. I said before I wouldn't port to WinForms any time soon, but I changed my mind. I have it running on Ubuntu 14.04.

It generally works, but needs some more testing before I'm confident enough to release it. It will be ready in a few days.
If anybody is feeling adventurous, you can get the source from the
github page and compile it yourself. The output of the CryptoNoteWallet.Gui project is the one you'll need. You will need to change the wallet and daemon executable names in the CryptoNoteWallet.Gui.exe.config (they don't have extensions on linux).
It's so great of you for being cooperative!

As I have promised, I'm improving the feature set of my WPF project day by day, so people can expect the first test release soon. Things which are non-functioning yet are:
- Ledger of transactions
- Address book
- Top menus
Some of the tasks with top priorities include localization support: The earlier it gets added, the less work it requires to be implemented.
Just to mention, the back-end already supports multiple transactions at once, and stores a list of all the transactions. I'm not planning to add support for multiple wallets running at once, as Monero provides privacy for a person with only one digital address. (So, not adding a 'Receive coins' tab is on purpose.)
As for closing the client, I have added a business indicator which shows a status message of shutting down.
EDIT: Aaaaaand, here comes the localization support!

(It's Hungarian, like me
)