I want a handheld android device, I plan on purchasing the Archos 43, but if I can, want to buy an Android smartphone, such as one of the HTC phones like the Desire or Wildfire, but I am not going to buy a plan, I just want to use it on my wifi network. I could then use my google account for texting and calling. Is it possible to have an Android smartphone and use it without a sim card? I might also want a Motorola Android. Can I do this?