Not in the sense that people line up a Sony Xperia, HTC touch, Samsung Galaxy... and the nintendo switch before comparing specs and price. However a lot of what looks to be happening for the switch could well also happen for phones, and while I do not want to read too much into the launch titles/titles I already saw... yeah.
To that end quite a few of the potential audience might have a phone, or have a phone and face a choice between spending the extra on a better phone or a switch. We already saw the rise of IOS gut DS homebrew, take a whole bunch of developers and it is not like the 3ds is riding as high as the DS.