I have my device in hand for a week now, and I totally understand the comments / requests for a fn-lock indicator. This is far and away the most obvious design flaw in an otherwise awesome product. Probably too late to change the keyboard design now, but a gen 2 keyboard would be good to fix this. Also, exposing the fn-lock status through the EC so that we can have an onscreen indicator of it would also be very helpful!
New features I would like to see, in rough order from easiest to hardest in my not so EE qualified estimation:
Battery partial state of charge target (with easy “Charge to full now this one time” userland API)
BIOS programmable TDP/clock hard clamp when on battery (i.e. keep TDP low enough that fan won’t ever come on)
Vesa mount mainboard holder chassis
Matte screen
Touch screen
Brighter screen (500 or more cd/m2 for sunlight legibility)
360 degree hinge or double hinge
Hinge mod to ensure fan cooling air exit has a clear path regardless of lid open, closed, or angle.
Speaker delete + increased battery size kit
Input deck with blank and completely open keyboard area, for DIY hacking in other keyboard form factors.
Tablet form factor chassis (a la surface pro or Lenovo Miix), with improved passive cooling
Wireless charging in and out
HDMI / DP alt mode IN + software to display this input in a window + USB HID back channel mouse input, keyboard input, etc
Input deck to wireless+wired in a separate detachable housing conversion kit (i.e. turn it into a “type cover” for the tablet chassis)
Mokibo style keyboard / touchpad hybrid
All the fast charging standards, USD-PD 3.1, EPR, PPS, QC1/2/3/4/5, compatibility for power in and out (note: F.w did well to think about this and even allow trickle charge from 5V, but making sure the F.w can take max power from whatever USB it happens to be connected to would be even better)
Removable GPU mobile dock that plugs into expansion bay(s) but still exposes USB-C to the coast. Could expand F.w footprint laterally, longitudinally, or my favorite would be to expand it vertically and add additional cooling fans for both the GPU and to force more air into the F.w itself for better high load performance.
Projector chassis and components (to put obsolete main boards into for a second life as media consumption machines)
Mainboard as wireless router kit (with expansion “cards” acting as upgradable wifi radios, with RP-SMA antenna connections)
RISC-V processors, but only if there’s native or second chip support for TB3/4/5…
And finally, folding chassis and screen (a la Lenovo X1 Fold), but not until flexible display tech matures quite a bit.