New RCCDroid APP makes you control the A58 (and other Sony cameras too?) via tablet/smartphone.

At rccdroid.glensk.com you can read about the new RCCDroid Android App (Download here at Pplay.google.com). It’s a new App that allows USB Tethering/Remote Control of the Sony Alpha SLT-A58. But someone on the Sony Germany community also discovered that it should actually work on other cameras like the DSLR-A700, DSLR-A850, DSLR-A900, SLT-A99, ILCE-7 and ILCE-7R).

This is what you can with the Android powered device and USB connection:
Preview of a taken picture on a large display (e.g. Tablet)
Long term exposure without touching the camera (BULB)
HDR Series
Selfportrait with correct focus

The following features are planned for future versions
Timershots (Time laps)
Change of camera properties
HDR Series with different adaptions
Automatic shutter by noise
Wireless mode via Bluetooth
Videotakes
Writing of GPS data to pictures
Support of further Sony models (e.g. A99)

Sounds great!