Rather than becoming fixated on your perception of Nokia's level of openness, it'd probably behoove you to pay attention to the information that already out there and the answers to these points that have already been provided. For the sake of completeness, though, I'll address each of them with what we know.

We can be certain that at least one of the devices in the next generation will have a keyboard. There's a reason they put on in the N810, and I don't see them taking it out.

Considering that it looks like Nokia Maps will be bundled with Fremantle, I'd say this is a certainty.

Of all the potential features of the next device, this one is the least clear, but it's also one of the less relevant things to application developers. The bit of information about cellular connectivity that's relevant to developers (the data connectivity) was announced last year.

We have a part number for a Sony panel, you get the specs on it and you'll know for certain what the dimensions are. Really, though, the important information is known: the screen will be 800x480, and since that hasn't changed in 4 years, I'd say it's safe to assume that the dimensions wont, either.

Also hardly relevant to application developers. "A lot less than your average desktop" is plenty of information here. Whether it's 128MB or 256MB isn't going to make or break anybody's development plans.

This valid only to a certain extent.

This might be important if developers had to target only that varient, but as the software is expected to run on other devices, I think it's pretty safe to assume that this isn't a make-or-break proposition here.

Is the question here whether it's going to require an Apple AppStore-style gateway for software distribution or whether commercial developers will have the option of a more heavily supported (and commercialized) distribution method?

If it's the former, well, that's obviously not the case. Developers will be able to distribute their software for Fremantle through Extras and the Application Manager just like they always have.

If it's the later, well, how in the world is that relevant to anybody but commercial developers (who already have access to this sort of information through their relationships with Nokia)?

There are several mentions of video-out in the code (composite), and since USB isn't going away, an external display adaptor is still an option (probably a more feasible one with a faster USB bus, too).

Based on all of the information available, I think we can safely but this one to rest for the time being. The best argument against it are liqbase and Numpty Physics in the Fremantle Stars, well, that, and the (two) resistive panels listed in the kernel.

Same answer as above.

This hardly seems like a critical bit of information for application developers. Especially as something like this is likely handled at about the level of system sound notifications (i.e., very low level).

Based on the part numbers in the kernel, I'd say this is almost certain. I can't see Nokia backsliding on this feature anyway.

This is an easy one. Idle battery life will be superior to OMAP2 hardware, while full-blast battery life will likely be slightly worse (since there are a lot more components involved). The battery size isn't likely to change by much. Yet again, though, this isn't really critical for application developers.

Based on the applications in the Fremantle Stars, and the resistive screens in the kernel, I'd say this rumor is vastly overblown.

I'd say it's pretty safe to assume that the formfactor hasn't varied excessively from previous models. But, again, I don't see how this is a critical bit of information for application developers.

Really, though, the beta SDK isn't even out yet. We're still on an alpha release that isn't really intended for application developers. Who's to say that a hardware announcement might not be coming with the beta release? Then the application developers will have all of the information they could possibly need to develop for the next tablet.