The 2009 Omnia line of devices are (compared to their peers) fairly low on RAM.
This causes issues when software is closed to free up RAM, but luckily Chainfire has a solution!
The idea is a fairly simple one, alter the minimum free RAM that WM should allow.
By default the Omnia I8000 starts closing software when it has less than 30MB of RAM, and stops when 45MB of RAM are free. As Chainfire says, that’s not ideal when you only have 50MB of RAM available.