Yes, very nice.
I'm in a rush but since you asked here are a few other suggestions off the top of my head
...
Allow the user to change the text settings. For example, you are calling the site
You can view the text settings available here:
http://www.forexfactory.com/excal.php
This can be done two ways...
1) Allow the user to change the link settings via the program.
2) Allow the user to insert their OWN url into the program. The user could then go to the second link, select their choices, and then paste the generated url into the program (the easiest way).
For the opacity, it would be nice if there was an option to make the window solid when you mouse over. Then you can quickly have the best of both worlds.
An alarm for news would be very nice. A user could select the impact level and desired amount of warning. Programming wise this would need to extract the data displayed into tables to compare time, etc. Data mining would take the complexity to another level though and I don't know if you want to go past the iframe simplicity approach. However once this programming is done it would open up much more personalization for the end user. Just something to think about.
Instead of having pre selected numbers for refresh and opacity, it might be easier to just have a box to enter the desired level (1-100 for opacity and time in seconds) and a "disable" selection (which would grey out the box when selected).
The ability to save settings is probably the biggest suggestion I have. This should include the ability for it to position itself correctly on the screen as well.
I like the fact that you can move the window to a position and then "stick" it there by removing the border.
