3.0.3 early preview seems to be out @Amazon.
Looking around to see what changed right now...
First, the bad news:
* It plugs the (previous) jailbreak exploit.
* It'll disable usbnetwork (just the symlink). I'll update usbnetwork right now to handle that without having to reinstall the hack after the update.
Then, the actual content:
* Kernel, wifi driver, usb driver & eink controller driver updates
* Framework updates
* Browser updates
* Wifi settings handling updates
EDIT: Never really checked since when, but, indeed, it's not an RT PREEMPT kernel anymore... (Or at least not like the usual default RT_PREEMPT config of the -rt patchset). Like I said the first time, not a surprise, it's pretty unforgiving of crappy hardware drivers/software...
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