Tasks is a bit of a favorite in these parts. We all rely on Google's services immensely day in, day out, one of which is Google Tasks. In lieu of any kind of official application from Google, Tasks is the next best thing. Simple, excellent looking Holo UI, and of course, syncing up with Google Tasks. Today, the developers have pushed out a little update aimed specifically for users on Android 4.2.
We're talking about a lockscreen widget. While the whole notion of widgets on the lockscreen is a point of debate for some, the ability to add something like a tasks list is potentially a great time saver. You get the same great widget as on the main homescreen, without the need to unlock your phone.
Additionally, theres a bunch of minor bug fixes, and an updated app icon for anyone with a Nexus 10 and other ultra high density screens. Tasks comes in free and paid versions, and the updates apply to both. You'll find a link to the free version at the top of this post.