Unattended connect on LAN without installing the client
One of the best features of LogMeIn, which I am switching from, is being able to see a list of all computers on the LAN, and then initiating a remote control session just by inputting admin credentials. In Splashtop, the only way to access an unattended PC is to install the client ahead of time. In LMI, you click the "connect on LAN" button, where you can see the computers on the local network, click connect and it will prompt you for credentials.
This would be a huge improvement, and one which would make Splashtop equal with LMI.