Messaging is unusable

I bought this app for the messaging feature. But few critical issues make this app unusable:
- Initiate new conversation: you can not focus on the text box.
- Backspace is block, and there’s no way to delete text in the text box.
- Windows does not show up in cmd+tab. Very hard to locate.
This app looks promising, so please fix them!

Ray-leaf about Current for Facebook