Syntax error

The same here!

Ugh, how come it didn't throw an error for me? :-(
Anyway, see as testing this on my own local is obviously not good enough, can you guys let me know if changing line 133 to

$default_options = self::getDefaultOptions();

solves the problem?

Sorry, but the system return:
Parse error: syntax error, unexpected T_PAAMAYIM_NEKUDOTAYIM in ../sites/all/modules/quicktabs/quicktabs.classes.inc on line 182

OK, try changing that line to

$type = $tab->getType();

And there's a similar one on line 77 of QuickQuicktabs.inc which will need changing the same way, i.e.

$ajax_path = $quickset->getAjaxPath($i, $tab->getType());

I still don't understand why I'm not getting these errors and you are. I'm on PHP 5.3.5, what about you?

Once I get these nailed down I'll immediately release alpha2

Thanks for your help!

All is going well at the moment after applied this fixes. (PHP 5.2.17)

Great, thanks EndEd.

And I've found an explanation... (via http://stackoverflow.com/questions/3679717/unexpected-t-paamayim-nekudot...) from the PHP 5.3.0 changelog:
Added support for dynamic access of static members using $foo::myFunc(). (Etienne Kneuss)

I have committed the fixes and will probably tag an alpha2 release in the next few hours if I don't hear of any more problems.
http://drupalcode.org/project/quicktabs.git/commit/b5b851c6193190eb5a9ec...

Problem solve (PHP 5.2.17).
Thanks.