They haven't ironed the bugs out of the update process. It bollocked my copy of Blio and I ended up having to go download the full install file and use it to repair the Blio app.
But I also wouldn't bother with the app becuase I cannot see any changes. I don't see any new reading options or any new way to annotate the ebooks. And of course the most important feature, the TTS, is still horrifyingly bad. I wonder when they're going to get to that?
They're going to have to, at some point. When Baker & Taylor demoed Blio, 2 of selling points were the free download and the great TTS. They were pitching the app based on (in part) these 2 features, so I really do expect to have them both.
If they never follow through then there's going to be a huge difference between what they pitched and what they delivered. And there won't be a good reason for it other than their marketing department really should have known not to promise what they couldn't deliver.