Yesterday, we posted that Intuit was basically discontinuing Cha-Ching after hiring the developers and purchasing the app, and it was a little disappointing that they weren't offering any upgrade plan. While Mint.com is free (and some of the Cha-Ching know-how was going to go into the Mint.com iPhone app), it'd be nice to at least get a discount on Quicken or something like that for current users. Fortunately, competitor Jumsoft is stepping up into the void -- they're offering 50% off of their Money app for OS X to current Cha-Ching customers. Usually, the app is $40, bu