Not looked at g9's, will have a look. I'm 50/50 with archos, they seem to give them a descent spec but they all hugely under perform. I've got a Archos 7 and the product support and promises from archos were short lived in terms of software through most off there product range. Luckily with android there's a huge community with custom builds and cyanogen which gave the tablets a meaning such as enabling the market etc.
I played with an archos g8 101, that felt underpowered from its spec compared to other similar tablets.
But I will still have a look.
Been thinking of a HP touchpad, the OS I haven't played with but I noticed from reviews it performs very well. There seems to be a dual boot with a cyanogen mod made by the community with continuous development. Plus HP have said they will add windows support, but whether they follow through or not is another question as the touchpad is no longer manufactured.
Seems like a lot of tablet manufacturers really don't want to make tablets that dual boot, instead they make the same tablet twice with a minor variation to support the individual is, which is understandable for marketing and money making as it forces you to buy two tablets. Yet most tablets that seem to support dual boot do it poorly at the moment, so I'm in a pickle. Plus the dual booting tablets with 16gb seem to loose all there space once windows is installed.