Sweet! Lookin' pretty good. I hope the binaries for the UI acceleration get updated. Has the nook tablet source and files dropped yet? I seem to remember the NC and nook tablet having similar video hardware. Could be wrong. Are those binaries in that tablet as well?
Finding whats wrong isn't a problem right now, which is exactly why they didnt release flashable zip file. They did however post a link to the source, which if you know how to compile that, you know how to get it running on your device and may actually be of some use to the devs in getting other things working.
The nook tablet uses an OMAP4 es ("enhanced security") from Texas Instruments that has a signed bootloader, which is checked on boot at the hardware level. The signed bootloader (u-boot) in turn checks the signature of the kernel and the ramdisk. Which means, fwiw, that you can't easily replace the bootloader or kernel (or basic startup sequence in the ramdisk) without it being signed by Barnes & Noble.
That said, people have run stuff "around" the existing kernel/ramdisk as nemith has done with cwm. Or you can just run apps you want within userspace (ie, using their kernel/ramdisk) by rooting Android with Zergrush and then installing the market or sideloading or whatever as several threads on this site tell you how to do. There were also several articles on this recently.
Interestingly, the signed kernel does load unsigned kernel modules, meaning a specially-crafted module can theoretically be written to "kexec" (ie, run) a 2nd, unsigned kernel/ramdisk "from the inside" of the kernel. That "second boot" possibility would facilitate the running of alternate OSes, and there have been attempts to do this with the Motorola Milestone. And finally, if anyone finds an exploit in uboot (such as improper validation of input, say while it reads bootcnt or bcb files or something), this too might also be another way to get a "normal", unsigned kernel/ramdisk to run, and therefore ICS would be a lot easier and control would be restored to the owner of the hardware.
That said, a philosophical opposition to DRM has lead a lot of people I've talked to to just say "F the nook tablet" and not purchase one in the first place. Dunno.
Speaking for myself, I ask that you consider donating to the Electronic Frontier Foundation -- Eff.org -- they help keep our right to hack/jailbreak/root our own hardware safe and legal when corporations or government (usually under heavy lobbying from corps) try to infringe on it. And to that end, they also take up the legal defense of folks who are threatened or sued unfairly, such as just a few days ago with the security blogger who posted a spyware/rootkit warning and was hit with an intimidating takedown legal threat by the company he outed. They also fight laws that would censor or wall off parts of the Internet.
Donations to the EFF are tax deductable for US residents as well. They are one of the few organizations concerned with defending the Internet and digital-related interests of normal citizens and consumers, and a donation to them is really doing yourself a big favor.
Plus I think they'll send you a hat.
/end of pitch.
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