iPhone users have been able to take screenshots quite easily for a number of years via a native "home + sleep" button combo push. Android users have been hurting for an easy way to do screenshots on their on devices since the beginning as it is not native to the Android software. Yes there are many apps out there that can do it, but they require "rooting" (hacking) your Android phone and we cannot recommend that.
Well, No Root Screenshot It is now available to make it easier for all of you Android users out there. It is a $4.99 app, but getting this feature could be well worth the cost for many.
You can find all the information at this LifeHacker article