Here is a picture from one of the Amibroker user running Amibroker in his Acer W4 windows 8 tablet and I personally tested in Lenova Twist Tablet and Working Amibroker in a Tablet is so cool!
Netdania provides tick by tick realtime updates for Interbank Forex Market rates, World Indices, Stocks(almost all cash markets are covered), International Commodities for Android, IPAD, Iphones. Nearly 20,000+ instruments are covered and that too available at free of cost. They also provide live news from Market News International and FXWirePro. The Best part of the Charting App is Good user interface and user experience as it is desinged to utilize the app in a user friendly way.
Qtstalker is a user friendly Technical Analysis package for GNU/Linux (and hence other Unix-like systems). Similar to commercial wares such as Metastock, Supercharts and Tradestation. Keeps to a lean, simple design for speed, portability, and low resource usage. Because it uses a plugin model, Qtstalker can easily be extended.