Symfony2 bundle name, short version?

Examples given in Symfony 2 webpage

Namespace                       Bundle Class Name
Acme\Bundle\BlogBundle          AcmeBlogBundle
Acme\Bundle\Social\BlogBundle   AcmeSocialBlogBundle
Acme\BlogBundle                 AcmeBlogBundle

My vendor name is 9 characters large, but I find it redundant to have MyVendorName/ForumBundle and class name MyVendorNameForumBundle.php if it resides already in MyVendorName/ForumBundle directory.

Will it bring me future problems if I just name my primary class ForumBundle supposing I want to share? Obviously, the namespace is still MyVendorName/ForumBundle.

Is that class actually used somewhere or is just a one-time config somewhere?

My main concern is that I don't want to use the large name (eg MyVendorName/MyVendorNameForumBundle::someMethod()) everytime I need to access it.

Maybe this isn't all correct, I am new to Symfony 2.

Thanks