If you think this "piano app thing" is limited to small third party developers or inexpensive digital pianos, even the famous Steinway & Yamaha grand piano companies have gotten into the act and have produced there own apps (Steinway Etude & Yamaha Notestar - left pics) which can be used no matter what brand of piano you own. So the iPad phenomenon has not gone unnoticed even by the most conservative and professional piano manufacturers. However, in my opinion, a good digital piano with the proper iPad connectivity has more advantages when an iPad is connected to it in that it is a good lower cost alternative to a regular acoustic piano and many of the new digital models in all price ranges can easily be connected to an iPad via a USB output on the piano, along with easier control.
iPad piano learning.
If you want more info on new digital pianos & iPad piano apps and LOWER PRICES than internet discounts on famous name brand pianos, please email me at email@example.com or call direct at 602-571-1864.