Originally Posted by bikebikebike

Pretty much on target. other than ANT+ connectivity.
Phones are more costly and easier to damage in the bike environment, especially when they need to be frequently dismounted to carry from a parked bike.
Battery life is also an issue whenever you have a big bright color screen.

That said pulling off to make a call after being notified is only prudent and not in the least unreasonable.
We are still quite a way away from a car like mobile PAN that has the flexible capacity that the bigger car market took years to reach.
Bike computers are sort of like Flip-phones and will probably share their trajectory and fate.
Few enough pony up for the added SIM and data link for the Karoo, and I think that is the provenance of the hackers and marketing folks.
Phone still does phone stuff better.
Adding an ANT+ bridge seems to be inexpensive, but adds complexity that has a pretty narrow appeal.
Karoo added a second BT channel, because of the conflicts a single one appeared to create.
It's not like carrying a phone is an added burden, though carrying stuff you don't need is.