So have the automated script also document what the options are so that you can quickly check what is and isnt' enabled by comparing the version number with the timestamp to the document.

Awesome screenshots, congrats

Is this only a GUI browser or also linux with GUI (judging from the last screen I guess it is?)

This is a full-on X.org window system. We could run lxde at this point if we wanted to, but it would be slow....(lxde panel is running now)

Call me crazy, but ... Is an USB external screen (well, at least some kidn of display) possible ?

Is there any chance that it will support USB 2.0?

It had better be USB 2.0, since OTG mode (where you can be either a host or a slave) wasn't introduced as a specification for 1.1.

The latest commit of Nspire Linux can now boot successfully on a Touchpad! (therefore, it'll most likely work on a Clickpad too but it's unimplemented right now)

Here's the bootlog (some unrelated parts editted out to take less space):

Linux in-place bootloader v2
Allocated memory:
   ATAGs:                 32512 bytes
   Kernel and ramdisk:    11272192 bytes
Machine number: 4442
Detected a non-CX
Physical memory at: 0x10000000-0x12000000
Serial number: [...] rev1 (CAS)
kernel linux/zImage.tns
Kernel successfully loaded
initrd linux/initrd.tns
Ramdisk successfully loaded
cmdline earlyprintk debug console=ttyS0,115200n8
Kernel command line: "earlyprintk debug console=ttyS0,115200n8"
boot
Uncompressing Linux... done, booting the kernel.
Booting Linux on physical CPU 0
Linux version 3.7.0-rc2+ ([email protected]) (gcc version 4.6.2 (GCC) ) #494 Fri Nov 30 16:32:14 EST2
bootconsole [earlycon0] enabled
Memory policy: ECC disabled, Data cache writeback
On node 0 totalpages: 8192
free_area_init_node: node 0, pgdat c02e8de8, node_mem_map c0315000
  Normal zone: 64 pages used for memmap
  Normal zone: 0 pages reserved
  Normal zone: 8128 pages, LIFO batch:0
pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
pcpu-alloc: [0] 0
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 8128
Kernel command line: earlyprintk debug console=ttyS0,115200n8
PID hash table entries: 128 (order: -3, 512 bytes)
Dentry cache hash table entries: 4096 (order: 2, 16384 bytes)
Inode-cache hash table entries: 2048 (order: 1, 8192 bytes)
Memory: 32MB = 32MB total
Memory: 26680k/26680k available, 6088k reserved, 0K highmem
Virtual kernel memory layout:
    vector  : 0xffff0000 - 0xffff1000   (   4 kB)
    fixmap  : 0xfff00000 - 0xfffe0000   ( 896 kB)
    vmalloc : 0xc2800000 - 0xff000000   ( 968 MB)
    lowmem  : 0xc0000000 - 0xc2000000   (  32 MB)
    modules : 0xbf000000 - 0xc0000000   (  16 MB)
      .text : 0xc0008000 - 0xc02a9000   (2692 kB)
      .init : 0xc02a9000 - 0xc02c601c   ( 117 kB)
      .data : 0xc02c8000 - 0xc02e9500   ( 134 kB)
       .bss : 0xc02e9524 - 0xc0314200   ( 172 kB)
SLUB: Genslabs=13, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
NR_IRQS:32
jiffies = 4294937296
Clock source registered
Timer mode set to 1, evt->mode = 1
Timer mode set to 3, evt->mode = 3
Clock events registered
sched_clock: 32 bits at 100 Hz, resolution 10000000ns, wraps every 4294967286ms
Console: colour dummy device 80x30
Calibrating delay loop... 59.39 BogoMIPS (lpj=296960)
[...]
sram pool: 128 KB@0xc2880000
Serial: AMBA PL011 UART driver
[...]
Switching to clocksource clocksource
[...]
Trying to unpack rootfs image as initramfs...
rootfs image is not initramfs (junk in compressed archive); looks like an initrd
Freeing initrd memory: 2600K
io scheduler noop registered (default)
Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
serial8250.0: ttyS0 at MMIO 0x90020000 (irq = 1) is a 16550A
console [ttyS0] enabled, bootconsole disabled
console [ttyS0] enabled, bootconsole disabled
[...]
TI-NSPIRE keypad
input: nspire-keypad as /devices/platform/nspire-keypad.0/input/input0
[...]
BOOT1 ROM mapped to /proc/boot1_rom
Contrast settings mapped to /proc/backlight
RAMDISK: ext2 filesystem found at block 0
RAMDISK: Loading 2601KiB [1 disk] into ram disk... done.
VFS: Mounted root (ext2 filesystem) on device 1:0.

Welcome to Buildroot
buildroot login: root
#
# uname -a
Linux buildroot 3.7.0-rc2+ #494 Fri Nov 30 16:32:14 EST 2012 armv5tejl GNU/Linux
#
#
# cat /proc/cpuinfo
Processor       : ARM926EJ-S rev 4 (v5l)
BogoMIPS        : 59.39
Features        : swp half thumb fastmult edsp java
CPU implementer : 0x41
CPU architecture: 5TEJ
CPU variant     : 0x0
CPU part        : 0x926
CPU revision    : 4

Hardware        : TI-NSPIRE Touchpad Calculator
Revision        : 0001
Serial          : [...]
# sleep 1
# sleep 10
#
No display (all output is through serial at the moment) or USB support yet though. Will come soon! Aside from that, I will need lots of testing.

On the CX port, I also need to merge vloginator's patches for the LCD (I will do it together with the Clickpad/Touchpad display support).