Veency is the name of the latest application that has been released today by Saurik, the author and maintainer of Cydia. Veency provides a VNC remote desktop server for your iPhone, allowing you to view the iphone springboard and everything else on it via your Mac/PC with any VNC client.
The best thing about this app is that it handles text entry. This means you can upload notes and type directly onto the iPhone.
Another nice feature, is the text alert like the screenshot in the top of the post.
No password is needed when establishing a connection there is also no on/off toggle, but both things are planned for a future release.
Below a video of the author demonstrating veency.