What stock will replace GM in the Dow Jones?

With General Motors Corp. (GM) filing for bankruptcy protection, it will no longer be part of the Dow Jones Industrial Average stock index. The question is what stock will replace it. One main consideration will likely be a company's market capitalization. If other, current components of the index are any indication, it probably would have to have a market cap of at least $50 billion. Ideally, the company also would have shares that are widely traded and the firm would be a household name.

More difficult than the issue of the size of the company, however, is the issue of what sector it would represent. Will the DJIA get more weight from the tech sector? Retail? Consumer products?