A smartphone like an iPhone or Google Android phone is for all practical purposes, a portable handheld computer.
“A smartphone like an iPhone or Google Android phone is for all practical purposes, a portable handheld computer.”
So? When it comes to text messaging, it’s just a phone taking a “call” through it’s assigned number from another phone number. If the messaging comes to the smart phone via the Internet, that’s a different mechanism, but with IM it’s not!