Is it possible to have multiple images on product pages? Like for example 3 pictures in a slideshow?

You could add pics in product description html.

The slideshow thing was a requested features, but either it had problems or was done away with, I forgot.

I have a little script on my home page that displays several photos as a slide show. I don't see why you couldn't add something like that in the product description area. I haven't tried it, so I don't know the ramifications.

As an alternative, you could create one graphic using multiple photos ... like a panorama.

You might also be able to combine all of the images into an animated .gif file... I've not done something like this before, but I believe you can do so through programs such as Photoshop.

You can also add additional product images into the Image Gallery feature for each product. This comes up in a new window and the customer can browse through each image.