Wouldn't that mean tradehill would still need to keep an account with them with money in it? What if Dwolla would decide to reverse more transactions and take more money from tradehill? I'm not sure how it works just asking a question.
It does sound like Dwolla can suck whatever money out of Tradehills account they like and use it in any way they see fit, so it is hard to fault Tradehill for having trouble transferring funds through Dwolla. One suspects that Dwolla has edited their books enough by now that Tradehill has a negative balance and if they tried to put money in to cash someone out, it would not work anyway.
Tradehill seems to have clammed up so I suppose they are finally in talks and we'll all have to just throw conjectures around for the fun of it.
For my part I have drawn my Tradehill account down just in case they 'see the light' vis-a-vis the 'proper' way to do business these days. Namely, that the business partners remain solvent, the investors stay whole, and the end users take it in the hind end. But I do retain some exposure on the strength of my success with Tradehill so far and Jered's communications on this forum. As alway, no more than I can afford to lose and chuckle in the process of doing so. Mostly it's way low bets in the case of a liquidity event which seems possible to me in this stage of Bitcoin's evolution.