Hello Marshall,
Thank you for your message.
1. There is only a pin/unpin mode. Why can't it just be moved out of the way? The fixed location poses issues, especially when on a smaller screen accessing a host with a larger screen.
Thank you for your suggestion. I'll forward this to our developers for a review to see if we can implement this feature in our future updates.
The tool bar should be customizable, adding the CTRL-ALT-DEL, copy and paste functions seems a lot more important and functional than the console and the two view manager buttons.
Please note that the
Send Ctrl+Alt+Del command,
Get remote clipboard/Set remote clipboard and other commands are already available in the
Additional Commands menu. You need to click the corresponding icon on the Toolbar to invoke the dropdown menu with additional commands:

3. The address book does not integrate with the mobile app, making the mobile app all but useless unless you've memorized all the internet ids of your PCs. Otherwise, how do you connect with a PC you have previously set up?
Please note that even though the full-fledged address book is yet to be available in the mobile Viewer, it still keeps the Internet-ID codes/IP addresses of the remote Hosts you've previously connected to from this app - it's available as a drop-down list and can be invoked by tapping on the three dots located in the Host's address field:

However, the full-fledged address book will be implemented in our future updates along with the improved version of the mobile Viewer app.
Hope that helps.