One of the downsides of Jomsocial default HelloMe module layout is that cant be displayed in horizontal style.
Even more, it wont allow you to choose what links to display.
Inline HelloMe solve all that problems in horizontal fashion allowing you high level of scalability when deciding what links to put in module layout.
For module to work properly with all links enabled, a 940px wide module position will be required. This can easily fall down to just a few pixels, depending on how many links are enabled.
Inline HelloMe cant be used as a login module due to its layout nature (just a few px high) but it supports logout buttons for both, Jomsocial standard, and Facebook authenticated users.