Nefarious has released an update to his custom firmware plug-in Cross Extended. This is a bug release version that fixes an incompatibility with certain homebrew applications and will now show memory cards greater than 4GB.
Changelog:
1.1 (build date 08/08/2008 )
* Fixed strange control bug when used with other homebrew (notably PSPFiler, LightMP3)
making it completely available in games.* Fixed the limitation for Memory Stick greater than 4Gb.
Source: eXophase

August 9th, 2008 at 9:50 am
[...] Read the full post here: pspslimhacks.com/cross-extended-v11/ [...]
August 9th, 2008 at 12:30 pm
Is the bug with the usb connection fixed?
August 10th, 2008 at 7:34 am
Its not mentioned, but it should be if it was present in v1.0. Download and try it?
August 11th, 2008 at 3:23 pm
ok to me
August 12th, 2008 at 12:43 pm
New version released: http://pspslimhacks.com/cross-extended-v12/