Windows 8 supports SMB1, SMB2 and SMB3:
How to enable and disable SMBv1, SMBv2, and SMBv3
All of my 'nix systems (running Samba 3) can see my Windows 7 & 8 shares, as well ES File Explorer installed on my Android tablet and phone. My Windows are installed in VM's and the Windows 8 is the Consumer Preview and it may be broken in some ways.
Oddly enough I can't get my "Windows 8 Consumer Preview" to show up in Oppo's search list (although it shows up on every other device) so I can't test it for share access.