I'm fairly confident the iPhone will never sell 100 million units.
The intelligence of the comments around here have been lacking as of late. Hopefully it will return after the iPhone release.
Mmmmm..... what about the (likely) various models of iPhone including the other devices the iPhone is likely to spawn.
For starters, the iPhone could be enhanced to:
1) include a hard disk or large enough Flash to really support gp computing,
2) use 100% of the front surface for Display/Keyboard rather than the current 75%
3) Include a camera on the front face (possible an interpixel camera)
4) more robust CPU
Prolly many of the iPhone features will be implemented in the next-gen iPods... say an iPod with MutlTouch and HDD, but no phone or WiFi
Or, another, less expensive, MultiTouch Flash device with IR instead of phone/WiFi to be used as a Universal remote (several High-End URs already cost more than the 8 Gig iPhone)
Or, a somewhat larger package (Display Storage Capacity, etc.) that could be a PalmTop computer with optional iPhone, etc.
Or, a totally customizable keyboard/display (and underlying computer) whose UI could be tailored by software to a specific application or user segment: insurance adjusters; Equalizers for Bands or AV DJ; handicapped (can I say that?) interaction; artists; cameras; GPS devices; performers; doctors; specialized Kiosks; teachers; coaches; gamers...
There are just so very many ways Apple can go with this!
This is Rev 1.0 of a keyboard-less and mouse-less, rather, Ephemeral Universal Keyboard and multibutton/wheel/pad mouse device... think of the possibilities.
This is a new category of UI & I suspect we are going to see it everywhere!
Mmmm... I wonder if the MT display can be transparent like an LCD display