Widgets can be neat toys, but people who have a bunch of them running might be amazed at the level of resources they can burn up. I’ve seen cases where a fast Mac had been reduced to a crawl – both in processing and network speed – because of a set of Widgets (some are badly written or thought out). Deactivating them returned the computer to good performance.
Apps that modify the global menu bar can cause problems if poorly coded. I do use one that seems to be well thought out, but I’m cautious about some others, which have indeed caused a variety of problems. I’ve seen discussions about Leopard noting that Apple may be leaning towards restricting some currently used approaches to changing OS behavior, especially input managers.
That said, I suspect that DT Pro 2.0 will provide a means of displaying the open databases to allow quick switching between them, as well as a list of currently closed databases.
Currently, the ‘Open Recent’ item under File displays a list of recently used databases. As that’s a DT Pro menu item, perhaps it can also be accessible to a keyboard shortcut app (the name of the currently open database appears at the top of the ‘Open Recent’ list).
In addition, the name of the currently open database appears on open windows, or can be seen by clicking and holding the app’s Dock icon.