Hello,
do you realise ArchOS Saphir 50 is actually a Nomu S10, just 2-3 times more expensive? I own Nomu S10, and can confirm that these two phones are absolutely, 1:1 identical (except for the sticker with the logo on the back). I even installed Archos 50 Saphir Android image onto my Nomu S10 and it has no idea it's running on Nomu and not Archos. It even checks for updates no problem. Arhcos only put their sticker on it and raised the price 2-3 times. You can get Nomu S10 for 100€. Or, if you wait for the discount/special offer that they sometimes make, you might get one for 80€. So, exactly the same phone, just 3 times cheaper.
Thus, you should be comparing against Nomu S10, not ArchOS.