A few weeks ago I tried another way of doing this that works much more the Drupal way, and provides the flexibility I repeatedly have been missing in OG. The secret? Node Access User Reference and Node Access Node Reference. (Thanx danielb/Daniel Braksator for the modules!)
The Empty Page module is a simple empty page solution. It provides an interface that assists in managing "empty" menu callbacks, mostly used for pages that only consist of blocks.
empty pages are necessary are things like the home page, or a section landing page where you want several info blocks that you can freely move around if needed.
Empty Page is completely disconnected from layout and will remain fundamentally simple
These days large scale organizations are providing custom-designed applications to suit the needs of the vast mobile community spread across the world. Internet giants like Facebook and Twitter have rolled out customized applications to provide for a great user experience. All of it makes sense because of the rapid advancement in mobile technology and the growing user base especially in developing countries.