If the company lives long enough, the hardware can always be improved. So can the software.
Palm proved that people wanted computers that would fit in their hands and pockets comfortably; that instantaneous readiness to work trumped other aspects of speed; that battery life is really important, but being able to drop a new battery set in is the fastest recharge method available.
Yeah, i seems like half their interface guys went to apple or google respectively and what was left of webos got morphed into a smart tv ui, that frankly isn't bad, although all the apps suck, so I don't use it.
Too bad the hardware was so mediocre.