Take a gander at this entry in Hugh Sisson's Diary of a Brewer. The Clipper City Brewing founder wrote the piece, "In Praise of Session Beer," both to do just that, and to let us know that Clipper City is considering a session beer. Here's what he said.
Perhaps if more breweries made an effort to market more “session” like beers that would help, but not if the consumer base doesn’t support the concept. Perhaps a “competition” to create the best session beer would help. I don’t think trying to get more pubs to do cask ale would be successful – too many pubs do not really know how to handle cask beer and the American consumer doesn’t really understand it anyway. And many brewers (myself included) have to really think about how marketable the “session” concept really is.
Having said that, however, I still think it a very worthwhile concept to try and develop. I am planning on discussing this with my brewing team over the next few weeks to see if we can come up with a product with good flavor, high drinkability, and an ABV around 3.5%. Don’t know if we will be able to sell it, but if it works, it will become my way of paying homage to the great English tradition that started me on my career in beer.
I'm not sure that a 3.5% non-cask conditioned beer will be a success -- much of the flavor and beauty of classic session beers comes from that liveliness. Maybe there would be enough market for a two-track approach, with cask for some markets. But I do know that I'm very pleased to see someone give it a fair shot. If I see it, I'm buying it. I urge you to do likewise, and if you like it, buy more...feel free to buy a lot more.