Are you often in a situation where you'd want to do your accounting on the go? Is this something you'd like to have for convenience, or do you need to be able to manage your transactions from your phone or another mobile device? Do you use mobile devices in your day-to-day work more than a computer? The more information we can have about your business and its needs, the best we'll be able to understand how to make Wave work best for you, and how this feature would impact your work, and the work of other Wave users.
While we do have plans to improve our mobile offerings in the future, I can't currently offer a timeline or guarantee specific features. We would, however, love to have a better picture of your business and your workflow.