Just for fun I´ve ordered one now, should arrive on monday. 
you got it from ware house Hamburg, germany.
They have send you also one where the charger is a NEMA type for us plugs?
Block Diagram and IC Identification attached.
I'm planning on rewriting the firmware, adding more features like I2C or UART decoding, and maybe even giving access to a Linux desktop!
I'd need access to the winbond SPI flash contents. That's where the firmware is stored (U-Boot, Linux Kernel and app). If anyone can dump it and post it, it would be great. If not, I will have to wait until I receive mine.
Thanks!
Have you made any progress? I just ordered one to use as a waveform monitor. They claim FFT but no screenshots. I do home its in the firmware and reasonably useable. At least through Amazon the return is easy.
I received mine today. One day service from Amazon which was quite impressive. Its all working and looks to meet my needs- waveform display for outputs of a distortion analyzer. I found the FFT and its not particularly useful but at least its something. The autoset seems to work well for this.
I will check its response etc. soon. Of course the label on the front does not match the splash screen or what the Amazon listing indicated. I have not found a reference to a firmware rev level yet. However at this price I can't be too picky. Now I need to find new homes for two Tek scopes.
I got one too. Looks nice and responsive at first glance, but it doesn’t seem to work as it should.
At the time it arrived I was playing with a new rotary encoder (optimizing the denouncing parameters in my code) and thought I should check what the pulses look like on the new little scope. I could not imagine a less demanding job to test it: trigger mode “Normal” on the falling edge, slow time base (2-50 ms/div), to assess the switching noise.
I noticed that at time bases longer than 10 ms/div, the green trigger threshold level and trigger x-position markers simply disappear off the screen and the trace does not seem to synchronize anymore (it still triggers). The only way to get the markers back (and have a stable wave on the screen) is by switching the time base back to 10 ms/div (or faster). The issue is easy to reproduce with a 20 Hz square wave in “Auto” or “Normal” trigger modes. Is this “normal” behavior for these scopes or is it mine particularly defective?
Also, as a bonus, the switching noise is almost gone when checked on this scope...