Eizh,
Nice work, looks awesome.
Is there a list of planned features available yet for this GUI?
I recommend watching the first 17 mins of the chat. This is not a mock-up - it's a live run of the code inside Qt creator so fluffypony goes through the functionality. Video link:
https://www.youtube.com/watch?v=LlTDS3iCqRYBasic overview:
The fully expanded account manager is intended for power users. There's a miniaturization button that takes us to a Bitcoin-style simplified interface (image 14 in the set I linked) where all you can do is send funds.
The transaction history can be searched/sorted by a lot of parameters including date ranges, address/names, amounts, payment IDs, etc. There's a slider to set the mixin level. You can collapse the Twitter/News bar if that annoys you. A wizard (for the first time it's launched) is in progress.
International translations will be crowdsourced to the community. Mining is not yet functional but the intention is to have it going in the background, helping secure the network and earning 'interest' for the user. You can opt out if wanted.