Curious to know what others think are some of the most promising and innovative applications within the generative AI application landscape?

GenAI makes chatbot better especially with RAG. It can get some information for business based on existing data instead of going through prod support, letting them to do something better rather extracting data based on business needs.
Summarizing data, articles is something to make use of, mainly it depends on how we are plugging the technology to business needs. For example summarize media article or customer feedback, use sentiment analysis to assign some score and then regular AI algo can be trained on this data for anomalies or prediction.

As an ex CISO I like the idea of gen Al to help answer vendor security questionnaires or security sections of RFPs

Repetitive business questions from cross functional partners can be automated via GenAI chat based tools. This would free up a lot of time for the analytics team to focus on other critical activities. 

Back office administrative tasks are obvious use cases that are quite suitable for automation via GenAI. That area of focus tackles the "heavy lifting" for many workers. Regulatory compliance is another one. 

We are experiencing different areas of GenAI on my side.   CoPilot with GitHub for developers.   Not that much a revolutionary tools but better than basic "autocomplete" code suggestion.

And for other target group of employees, we're testing CoPilot along with Office365 such as:
- Generating meetings minutes automaticaly in Teams (who attendeed, what was the subject, what are the todos, who said what).
- Summarizing PowerPoint content.

We are still very careful on AI and GenAI because of data privacy.