I don't know what kind of wireless distance, video resolution, field of view, and outdoor weather resistance you are looking for, but I think about as close as you are going to get may be one of the Panasonic IP video cameras.

Wireless that uses the typical analog or digital signal and 2.4 GHz camera/receiver setup is often unusable in many if not most indoor and virtually all outdoor applications. IP based with a wireless network buys you a little more range but are still not very reliable.

As far as solar powered, I have not seen a packaged system yet but a solar panel/battery system to power the camera could probably be put together for a couple hundred dollars in materials.

Internet accessibility is typical on IP cameras for network/internet use and most always include free DNS website service.

While viewing over the internet should be operating system agnostic, I have seen some that would only display on IE and not FireFox on a PC.

more advanced electronic security systems used for surveillance and monitoring but only WDR cameras stand out as the best and most practical solution to badly lighted or washed out videos and images.