You can't actually buy an Apple Watch for another month or so, but Apple has already opened the gate for apps. 9to5Mac points out a slew of freshly updated apps, including Twitter, WeChat, Evernote and the weather app Dark Sky (shown above), among others. While regular developers won't be able to submit their wearable-ready apps until later, this select group is getting started early. There will be a section in the App Store just for the Watch, but if you can't wait until April 24th you can start getting ready right now.