At least two financial institutions moved quickly to add an iPhone button for their websites:
Tech Credit Union was the first financial institution to let us know with a comment posted to NetBanker by Gabriel Garcia at 9:50 AM Thursday 
However, Wachovia may have beaten them to it, since the bank already programmed the feature in advance of the Jobs announcement according to the Director of Emerging Trends, Ilieva Ageenko, who posted this comment at 4:30 PM Thursday. Ilieva also said that Wachovia is working on an iPhone optimized homepage.
Kudos to both financial institutions, first for adapting quickly to the iPhone opportunity, and more importantly by getting the word out by commenting on an industry blog. Anyone else add an iPhone Web Clip to their website? Let us know by adding your comment to the original post here.