Microsoft has announced the Surface Go 4 — the latest version of its affordable 2-in-1 laptop series — at its Surface device launch event today. The new Go 4 features some minor performance upgrades over its predecessor, but it won’t be sold to consumers — the company says it’s specifically targeted at businesses and frontline workers. As WinFuture leaked last week, the official Surface Go 4 specifications reveal that the two-core Intel Pentium processor featured on the Surface Go 3 has now been replaced with a new, slightly beefier four-core Intel N200 chi...