So, as a Palm "Fanboy" I can say with certainty that those devices were not even in the same product category as the iPhone. Suggesting that they looked like iOS is farcical at best. I recall struggling for the better part of a week to purchase and install a "Yahtzee game" for the phone. Even after nine months on the 600, I _still_ was unable to reliably hit the proper key sequence to dial a number out of my phone book (the Cancel had the focus by default, so you would "select number, hit enter - and cancel out. Instead you had to "Select number, change focus, _then_ hit number to dial. They finally reversed it on the 700, screwing up 18 months+ of muscle memory that finally developed.
net-net - anybody who ever owned a Palm, and particularly those who used the browser, will state beyond a shadow of a doubt the iPhone and Palm had no relationship, evolutionary or otherwise, to each other.