is orblive on cydia or the app store and does it work for mac?
If you have a mac, buy elagato EyeTV. Works FAR better than Orb on a mac. Also looks better.
Slingbox is absolute waste of money. You will end up paying a ridiculous amount of money for software with poor, poor support.
As of today, their mobile player was last updated in February of this year. They still haven't updated it to stream in the I4's higher resolution. Oh yeah, did I mention that they still haven't put out an iPad app? And when they do, it will probably cost another $30.
You are better off dedicated a PC to these things. And while your at it, you can also stream music, movies, videos, e.g. The moral of this story is avoid Slingmedia.