From wikipedia:
http://en.wikipedia.org/wiki/Brian_Fargo
Surprisingly, I couldnt find this information on these forums
http://en.wikipedia.org/wiki/Brian_Fargo
On the podcast 1up Yours on June 6, 2007 at the 80 minute mark, Garnett Lee hinted that "The creator of Wasteland" was working on a "spiritual successor" to Fallout 1 & 2.
Surprisingly, I couldnt find this information on these forums