I can't reply or navigate back to homepage using the logo, open any menus, using my iPad.
Clicking buttons gives it focus, but doesn't invoke the action. Example: clicking Reply, makes it focused, but doesn't open the composer.
I had to use keyboard shortcuts to get this far on the iPad... I've tried 6 times now, refreshing the page in hopes maybe it was some sort of blip on my end, but I don't think it is.
Meta is simply unusable with an iPad right now, unless you have a keyboard for your iPad.