imagallery is very flexible and can be used in a wide range of applications,

Yes, imagallery makes it a lot more difficult to steal your pictures, especially in comparsion to general picasa options and most other galleries, which don't provide any security features at all.
imagallery does not show the image source, hides your username and encrypts your authkey.
imagallery itself does not even show, that your pictures are loaded from picasa and as you are free to combine several authkey-protected albums, visitors can't find a relationship between your other protected albums.
However, keep in mind that there's never 100% security when publishing any kind of content over the internet, but depending on how you use imagallery, your pictures are quite safe.

imagallery is 100% free for private purpose and for
- photographers and artists' portfolios
- model sedcards
Other than those exceptions, a commercial license is required for non-private-, commercial use, for organizations, companies, etc.

Nothing, but a picasa account and at least one picture uploaded.
You don't need webspace, a domain, programming skills, since all this is provided by imagallery.

Yes.

Should be less than one minute.

As it is our intension to provide a clear design, focussing on the pictures themselves and providing a bunch of features to make it difficult to steal your work, imagallery mainly targets
- photographers,
- artists,
- portfolios,
- model sedcards, etc...
Depending on the quantity of albums and pictures, imagallery may not be the right choice to present tons of images, however: It's up to you, if imagallery fits your needs, as there is no restriction.

Feel free to build as many galleries as you want.

No.

Please don't hesitate to send us your questions, opinions, wishlist or any kind of comment!

We are really looking forward to any kind of response.
Anyway, please keep in mind that this is just a non-profit project...

First of all: Thanks for your interest! :-)
Indeed, some help is highly appreciated, as this project takes a lot of time, efforts and money to keep it up and running for free.
You really can help a lot by...

- letting us know about your thoughts, ideas, bugs...
- spreading the project across the web!
- (as we don't have any sponsors or profitable, but annoying advertisement) by donating or becoming a sponsor/advertiser yourself! :-)