Wine still worked with PPC, with Qemu. Also, VMs will still work for those OSs. Xen and KVM, for instance, have already been ported to ARM. If you work with 'free software', then you have the least to worry about. Go look at the Debian ports. Already most of the open-source software out there has been compiled for ARM, even chromium works on ARM and has worked on the raspberry pi for a long time, for instance. So, you'll be able to use all the open-source software you want.
WINE = Wine is Not an Emulator. (the literal translation of the name)
it does not work like you think it works. you cannot use wine, without some other emulation going on in the background if you're not on an x86 architecture. http://en.wikipedia.org/wiki/Wine_(software)
Emulation via VM's also requires the CPU to emulate or support it at a hardware level, or else you are going to have overhead of the emulation layer, which, in current technology, arm is unable to provide sufficient power to do in any meaningful way. While you can emulate x86 on other platform, the performance overhead would make it entirely innneficient to do so, and honestly, quite painful.
Chromium s not an emulated program. Chromium is Chrome, that has been ported to use linux. the linux flavour MUST be ported to run on that other architecture itself. it is not emulated, but actually changed to handle the different instruction set. You cannot just take linux and install it to Arm, you MUST use an arm code base version of Linux.
You will only be able to use whatever software that has been specifically written for the Arm architecture. you can't just take your standard LInux binaries and run them on Arm.