Stackideas

Hello

I'm currently working on an idea for a site and have been looking for a component which will do what I'm trying to achieve. I'm pretty sure that Easy Discuss is that component, but I need to check a few things please (and apologies in advance if these are stupid questions!):

1 - Is there a list of modules that come as part of the package (ie top rated, most popular, latest etc)
2 - What is the schedule for the release of 2.x (full release) and what version of Joomla will it support? With J2.5 coming out in a couple of days I was looking at long term options.
3 - The main thing I want is for people to be able to post questions, comment etc. using social media (specifically twitter and facebook) logins, rather than just using joomla registration (not least because I don't want the added expense of some thing like community builder to manage the users at this stage). I see you list twitter as an option to do this, but would I be able to achieve this using some kind of facebook integration? Do you have a particular one that you'd recommend? (http://www.sourcecoast.com/jfbconnect/ for example?) The social media integration of the site is the key thing for the whole idea, so I need to know this will work ok.
4 - Is the (pro) license limited to one domain, or does that enable me to use it on more than one site.
5 - Lastly, why did I only discover this software after your 30% Christmas sale ended?! lol. (Do you do discounts often)?

Many thanks for your help

David