The new pricing can be found here: http://aws.amazon.com/ibm/#pricing.
Here is a summary of the IDS pricing as of today (if it is the future and you're looking at this post, you had better check the website directly):
Pricing for Instances running IBM Informix Dynamic Server Express Edition
Pricing for Instances running IBM Informix Dynamic Server Workgroup Edition
Here are the direct catalog links to the paid editions:
- IBM Informix Dynamic Server 11.5 Express Edition on Linux (32 bit)
IBM Informix Dynamic Server 11.5 Workgroup Edition on Linux (64 bit)
This represents a new model in the way you can pay for an IDS license. Instead of a one-off payments you can pay for an increment above the base AWS rate for EC2 usage. You want to use IDS Workgroup 64-bit edition in a Standard Large instance for an hour, you pay $1.31 for your usage including license.
Now it is possible to make a simple calculation based on your expected usage whether you'll save costs in configuration, set-up, and licensing by using a paid edition IDS AMI.
Here's a developerWorks page that has more information about the new IDS Cloud offerings and some useful links: http://www.ibm.com/developerworks/downloads/im/dsexp/ec2.html?S_TACT=105AGX11&S_CMP=LP
The Cloud Computing Labrynth
If you find the plethora of cloud computing options available to be somewhat confusing, you could do worse than look at the recent developerworks article by Brett D. McLaughlin, Sr.: Navigate the cloud computing labyrinth - Make an educated decision about the best cloud computing platform for your application. In this article Brett provides the basics on the major players, and what might be of interest to database people, Python programmers, Windows shops, as well as some thoughts on resources and billing.