We saw many threads on the Ubuntu User Interface Toolkit that will be available for the Ubuntu Phone application development (see this thread for example). But there seems to be no information about other really important parts of the SDK.
Furthermore it's really hard to continuative information using other information channels. The offical #ubuntu-phone channel at freenode.net is not yet frequently used, developer.ubuntu.com just targets the UI part of the SDK and the mailinglist of the ubuntu-phone group at launchpad.net also offers just insufficient information.
I would like to know something about the following topics.
Which possibilities will I have to store data? What is the standard database used for development (sqlite for example)? How could I store preferences? Will there be a Preference-API like the one of Android? What's about global Interfaces to access phone data like contacts, calls, sms and calendars.
What sort of internal communication could we expect? How could we use foreign and system applications to send emails or open websites ...? Is there a broadcast service to be responsive to system events like a completed bootup, an incoming sms or a request to start any app that could handle some kind of data? Also see this question regarding this topic.
What's about sensor API's? Which possiblities will I have to interface with the camera(s), acceleration, orientation, distance or GPS sensors?
An API to access information regarding the phone environment will certainly be there, but what will it be capable of? How would I be able to access the OS version, the screen resolution, the available sensors, the phone leds and the filesystem?
Will there be special implementations that simplify the usage of threads? How could I solve problems of concurrency and what kind of intercommunication will be available?
Testing is a important part of application development but I didn't see any information about unit testing, a mocking framework or the emulator, which was mentioned in some threads. Will the emulator be capable of sensor emulation, will there be a plugin to integrate the testing framework and the emulator into qtcreator?
Many questions but I hope that some of the developers will see this thread and answer some of them.