I just got a Pi2 and I am very impressed with the speed.
It is a whole working computer with a version of Linux called Raspbian.
So you get a UNIX like command prompt. Raspbian uses a thing called The Linux Frame Buffer.
That means that the display adapter on the board is available for use from the command prompt.
LaserBoy is compiled with libSDL, which knows how to use The Frame Buffer for display.
So, you can plug a keyboard and monitor into the Pi2 and run LB from the command prompt and it will take full advantage of the display capabilities.
But, Raspbian also has Xfree86, so you can 'startx' and go into a GUI windowing system.
LB also runs in Xfree86, so you can run it in a window.
Audacity also runs in X, plus a bizzillion other nice apps.
Raspbian includes a driver for the C-Media 106L and 6206. So these USB sound DACs work.
So for very little money, you can build a Linux workstation that runs LB, other laser apps and a whole bunch of other stuff.
Plus you can forget about using the keyboard and monitor and just plug it into your network and get to it's command prompt using an ssh client.
You cannot run LB from an ssh session. You need to be on the native terminal.
But you can use 'aplay' to play waves through the sound card DAC.
You can also plug an external USB hard drive into the Pi2 for a huge amount of storage for wave or ILDA or whatever.
There is also a Linux client-server thing called 'samba' which makes the Pi2 appear on a Windows Workgroup, so you can share a folder on your network and drag and drop files in and out of the Pi2 from any Windows machine. The Pi2 can also find folders shared from your Windows machine.
My plan is to take advantage of this nice fixed platform and write some code that makes the most of it.
I think it would be fairly trivial to make the whole thing into a live, streaming network DAC.
There are already laser DACs that use 'Jack' audio API for this very purpose.
I'm also working on some other nifty ideas that go with the Pi2.
If anyone else wants to get involved with some Pi2 development, let me know!
I'm very interested in the idea that MS is going to make a version of Windows 10 that runs on the Pi2.
James.