Remember when Palm was still very much alive, and competed against Android and iOS with its own webOS? After HP bought the company in 2010, they promptly ran the entire OS and ecosystem into the ground and sold it to LG. Now webOS is a mere shadow of its former self, continuing to exist on various LG electronics (mostly TVs).
Besides the Alexa integration, the fridge does have a few interesting features. The Smart Tag menu allows users to add tags to the screen, indicating what is stored inside and the expiration date of each item, which is used to notify owners about expiring items. There's a 2 MP wide-lens camera on the inside, which can be accessed from a smartphone at any time (even outside your home).
LG did not mention a retail price or when it would become available, but it is on the CES show floor if you happen to be there. Hopefully it's working better than Samsung's smart fridges.