I just bought an Olympus Pen FT. Printing black and white is no problem; I just use my normal 35mm negative carrier and crop with the easel...flare is probably increased. I'm still deciding whether it's better to put the frame in the middle of the negative carrier or off to the one side.
I'm not sure what to do about color. Are there any labs that can print color negative 1/2 frame negatives? I could probably get the film developed at any minilab but I only have a flatbed scanner which is marginal even for 35mm, and I don't do color darkroom printing yet.