No, Only one person can connect to your SlingBox at any one time. Also remember that the EULA states.
You may only use the Software in connection with your personal Slingbox, and you may not use the Software to access or attempt to access another person’s Slingbox, nor may you use the Software for any illegal activity.
You may not share your administrator password, user password, Slingbox Finder ID, SlingAccounts registration ID or similar identifier used in connection with the Software (each a “Password”) with any third party. Similarly, you may not use any third party’s Password to access another person’s Slingbox.
The Firmware and Installable Software, including but not limited to the source code and the specific design and structure of individual modules or programs, constitute or contain trade secrets of Sling Media and third parties.
You shall not disassemble, decompile, “hack” into, or otherwise reverse engineer the Installable Software or Firmware, in whole or in part, or permit or authorize a third party to do so, except to the extent such restrictions are expressly prohibited by applicable law.
You are solely responsible for any data or mobile telecommunications charges incurred by you as a result of your use of the Software or your Slingbox, and you shall comply with the terms and conditions of any data, telecommunications, Internet, broadcast or broadband service provider in connection with your use of your Slingbox and the Software.
Some jurisdictions require that users obtain a television license to receive television programming. You are solely responsible for obtaining and paying for such a license in addition to any cable, satellite or access fees that may be applicable, and you shall comply with the terms and conditions of your cable or satellite provider or television licensing authority.
Just passing it along in case you missed it,