Hello. I use MTurk occasionally and it has been good for me. I find myself limited to taking surveys and doiing some search tasks/game tasks. I want to expand the HIT's I can do but I know it is unreasonable to have every single gadget and operating system to meet every requirement. I do feel though that I can branch out and increase the HIT's I can do but I would like to know what advice can be offered?

I only have a laptop right now. But I noticed sometimes there are mobile HIT's that require mobile platforms to use in order to test things. I also notice that these mobile HIT"s pay more. So I was wondering about what advice can be offered about what kind of mobile device I should invest in?