Here is our story: we were searching what does lock sound do because for the past few weeks, sound stopped working in my son's games--just games, like Asphalt 8, Minecraft, etc., but not other apps--I can still play the podcasts without any problem. I checked all the Sound settings and couldn't figure out why.
When was the first touchscreen phone invented? The first touchscreen phone was launched in 1992 by IBM.The IBM Simon is also referred as the first smartphone.Simon is the first smartphone to be incorporated with the features of a PDA.
The iPhone was the first phone that shipped with an OS as advanced as the desktop version. WIth revolutionary touch interface that re-imagined the way user interact with their phone and finger. In particular, the scrolling behaviour was very natural because that gives way to a very intuitive user experience.