Zeboyd's pixelated refresh of the Penny Arcade RPG series will arrive on Steam and XBLIG on July 10. Penny Arcade's On the Rain-Slick Precipice of Darkness 3 (phew) will cost $5 on either platform, the developer reports, though the XBLIG version is obviously sold in Microsoft's imaginary fun money. The PC version will support SteamPlay cross-platform compatibility with the future Mac version, so if you buy it on PC you get Mac as well.
Zeboyd promises mobile versions as well, but more details on those are forthcoming. As in, don't expect to buy this on your phone in July.