If you've installed homebrew apps and are having issues installing apps from the App Catalog there is now a fix. It's called the Fair Dinkum App Limit and it's available through Preware.
It does not solve the 256 meg partition limit.
Here's the thread:
http://forums.precentral.net/homebre...tallation.html
Further reading:
http://www.rwhitby.net/blog/webos-in...ll-limits.html