Lenovo is working on a successor to its unique Yoga Book convertible

Lenovo seems to be working on a follow-up to the Yoga Book — the company’s 2016 convertible laptop that swapped out a regular keyboard for a configurable, touch-sensitive surface.According to regulatory filings logged at the Bluetooth SIG website (and spotted by Liliputing), the Chinese tech company is developing two new products: one “Lenovo Pen Pro,” and one “YogaBook2 Pro.” Obviously we can’t say much about these devices from their names alone, but i