"The purpose of the system (and the spectrum) will likely be broadband data, not hand-portable voice."
You're unlikely to get one without the other.. if down the road you can get an affordable internet connection on your phone without having to deal with cellular networks, I'd bet that you would see a huge shift to VOIP.
Edit: Whoops, looks like phones probably won't be able to receive this signal practically.
"I believe Musk is, like Teledesic, planning to use the Ka-band. That means the smallest antenna would be the size of a large laptop" [0]
You're unlikely to get one without the other.. if down the road you can get an affordable internet connection on your phone without having to deal with cellular networks, I'd bet that you would see a huge shift to VOIP.
Edit: Whoops, looks like phones probably won't be able to receive this signal practically.
"I believe Musk is, like Teledesic, planning to use the Ka-band. That means the smallest antenna would be the size of a large laptop" [0]
[0] https://news.ycombinator.com/item?id=9689869