超级白板

非常容易使用的一块白板应用。可以轻松分享，快速到绘制，流畅，占用内存小。
同时支持横屏和竖屏，简单使用，可以满足你对白板的八成需求。免费使用！ Very easy to use whiteboard applications. You can easily share, to draw fast, smooth, small memory.
It supports both portrait and landscape screen, easy to use, most probably meet your needs whiteboard. Free to use!