>> buster potzy has a batting average of .290. >> they are glad they made the trip no matter how farhey traveled. >> it's great to get the first-hand experience, be in the room and see the expressions. >> reporter: for the most part the reaction was positive for new mapping software and hardware but the biggest cheer was saved for this app-related update. >> developers have been well rewarded for this. we've written checks for over $5 billion to you guys. it's becoming an economy in itself. >> reporter: that looks to get strong wer the release of apple's newest mac book pro with an enhanced screen and super thin case. >> the hardware with the new mac book pro is setting a new standard i think. when consumers walk in and see this new display they are going to look and go shop for other products and see a difference. >> all of those updates a way for apple to tell its users even if you don't have the latest in hardware, there is enough software to keep you interested and up to date. in san francisco, scott budman, nbc bay area news. >> 4:47. wall street traders riding a roller coaster.