The HTC Flyer will be available for purchase from Best Buy starting from May 22nd. Best Buy will be exclusively launching the Wi-Fi only version of the tablet in the US.
The HTC Flyer Wi-Fi only 16GB version will cost 499.99 US$. But it seems that the stylus will be missing from the package and you will have to spend an extra 80 US $ to get a hold of it. The stylus can be purchased from Best But itself.
You will be able to get your Flyer online or from Best Buy and Best Buy Mobile stores.