If you've got a new tablet, here are some apps that show off what it can do.
GarageBand ($5 in iTunes) is a musicmaking app whose playable instruments will amuse and amaze you.
Amazon's Kindle app (free) works beautifully for reading and syncs with ebooks you may already have bought from the company. Apple's free iBooks is also good.
Apple's Pages ($10) is a touch-screen alternative to Microsoft Word.
The Elements: A Visual Exploration ($14) is so rich in detail and graphics that it could make you rediscover the fun of chemistry.
Mirror's Edge ($10) is set in a dystopian future in which you play a free-runner who leaps and slides across a city's rooftops.
LostWinds2: Winter of the Melodias ($4) requires deft taps and swipes to control your character as you explore a fantasy world.
Contre Jour ($1) is all about using the touch screen to gently move your tiny, monocular character around an eerie world full of magical tentacles and airborne energy sparkles.
Wild Blood ($7) is a role-playing game set in Arthurian times with extraordinary 3-D graphics.
Jasmine (free) is currently the best YouTube app.
Vimeo's official iPad app (free) has a built-in video recorder and editor, so you can create and share clips easily.
MiniatureCam ($1) applies effects to videos or photos that make them look like recordings of tiny models instead of the real world.
WeatherMap+ ($3) is all about showing you map-based graphical weather predictions. It will definitely satisfy your inner geek.
FOR ANDROID-based TABLETS
Edge Extended (about $3 on Google Play) is a swift-paced game in which you play a multicolored cube that you roll around a blocky terrain to collect targets.
News360 (free) is one of the better news-aggregating apps. You can tap on a link to read the original article, mark it as interesting, save it for reading offline or share it on a social network.
Need for Speed Most Wanted ($7 on Google Play) is a racing game with eye-popping graphics.
Wikipedia (free) for Windows 8/RT devices shows the online encyclopedia in its most elegant, graphical format yet.
Autumn Tree Live Wallpaper ($1) lets you control what type of trees wave their autumnal leaves in the wind. Delightful.
SoulCraft THD is a hack-and-slash roleplaying game. It is free to download and play, but you have to make in-game purchases with real money to advance quickly.
Curiosity (free) is a cube with faces made of millions of smaller cubes. Players all around the world hack away at these by tapping on their devices. A single prize is hidden inside an unknown number of layers.