Don't judge a book by it's cover. I am running Ubuntu on my macbook. So at these conferences it may look like everyone is using macs and therefor OS X, but perhaps there are more people like me running Linux on a Macbook.
I always have to laugh a bit after people ask me questions how I got OS X to look so different from the stock version. Usually I explain that you may run any OS on your Macbook. Be it OS X, Windows or Linux.
ps: For those wondering why I run Linux on a Mac. In my case I tend to develop mostly webapps which need to run on a Linux based setup anyway, so it just makes my life easier to have the environments more or less the same. Although with the current powerful cpu's and nice virtual machine solutions such as VirtualBox or VMWare I might be tempted to run each project in its own vm on whatever OS the laptop came with.
I always have to laugh a bit after people ask me questions how I got OS X to look so different from the stock version. Usually I explain that you may run any OS on your Macbook. Be it OS X, Windows or Linux.
ps: For those wondering why I run Linux on a Mac. In my case I tend to develop mostly webapps which need to run on a Linux based setup anyway, so it just makes my life easier to have the environments more or less the same. Although with the current powerful cpu's and nice virtual machine solutions such as VirtualBox or VMWare I might be tempted to run each project in its own vm on whatever OS the laptop came with.