If there were to be size limits or even not, an iBox needs a second page or a tab. This would be useful as a repository for dd links, history and older press releases that still are pertinent to investors. That would leave the main iBox quicker and easier to navigate. The iBox would be like a department store window with eye appeal, "show your wares" and page 2 would be the in store clothing racks where your customers could "shop" at their leisure and study the dd links.
My posts are my opinions. Always dd to your own comfort level.