Sony Ericsson collaboration
Interesting ideas. I work with Sony Ericsson, so I can give you some background to the hypothesizing here.
The P800 is due soon, there's no date yet. The hardware is very fixed now but SE are looking to get the developer community involved, see this product as more of a PDA than a phone, with a very open environment for developers. Certainly they would respond favourably to Apple wanting to develop software to run on it. It runs Symbian OS, which is the current OS leader for the next generation of phones (Nokia etc), and is a direct competitor to Microsofts phone platform offering (an offshoot of CE). What you won't see any time soon is a rebadged or redesigned P800, though an iApp or two for it is possible. As for shared hardware for the longer term though... it's always a possibility.
The Chatpen is a VERY cool piece of technology. It's based on Anoto technology (
www.anoto.com), which has Ericsson VC behind it. Basically it works on regular paper with a near-invisible pattern printed on it (this can be printed by any laser printer btw). The pen detects your writing and via bluetooth sends what you have written to your PC etc... What makes it great is that the pattern is not uniform, so the pen knows which part of the paper you are writing on. This means, for instance, that if you were doing a multiple choice the pen would know which boxes you were checking. Anyway, there is a good link between this and Inkwell - what the Chatpen doesn't do is handwriting recognition - the written marks are passed as graphics. Using Inkwell to turn this into type would have its uses. And an Apple designed pen should be easy enough to build. There's a great Wired magazine article on this too (
http://www.wired.com/wired/archive/9.04/anoto.html?pg=1).
Another interesting device is the CG75. (
http://www.sonyericsson.com/gc75/). This is a PCMCIA card that offers GSM and GPRS wireless network access. GPRS gives an 'always on' connection with very low latency making surfing with it actually bearable. Some mac drivers for this would be nice, maybe include the auto-network detection in OS X to use airport when available, moving down to GPRS when out of range of a WiFi network. Of course, if you have a bluetooth GPRS phone (like the t68i Jobs was using at MacWorld) and bluetooth on your mac this is obselete, as the mac will use your phone as a modem via bluetooth.