Try this:
TextFree
Sounds like it'll do what you want it do... and hopefully it'll be more useful than my Go Chat suggestion lol
Sky Go is here:
https://market.android.com/details?id=com.bskyb.skygo#?t=W251bGwsMSwxLDIxMiwiY29tLmJza3liLnNreWdvIl0
But only for:
Samsung Galaxy S, Galaxy S2, HTC Sensation, HTC Incredible S HTC Desire, Desire S and Desire HD.
Haven't got tasker installed so i'm just trying to remember..
Change the settings to advanced mode first.
Create a new profile with the state being orientation face down. Make the task as playback stop. Once done, you should be able to click on the task and make an exit state for media playback resume?
Just tried it then, create new profile and have the first state as orientation face down. Then for the action Use media control and cmd as toggle pause.
Then just create the exit command as the same and it works fine
*edit made simpler*
The content or just the nzb files? If the former then forget about it! Throughput and extraction speed is just way too slow for that kind of tasking!
NZBAir will download nzb files to the phone or send directly to Sab.