Please add a note to the generic notes of the api:
http://www.zabbix.com/documentation/2.0/manual/appendix/api/generic
When using searchWildcardsEnabled => 1, and doing a serach without the * makes the search an exact search:
eg.

search =>

{ name => "My app*", }

returns "My app 1", "My app 2" etc.

but doing it like

search =>

{ name => "My app", }

it will return just "My app"

Also please link the searchWildcardsEnabled to http://www.zabbix.com/documentation/2.0/manual/appendix/api/generic
Eg: http://www.zabbix.com/documentation/2.0/manual/appendix/api/application/get
This way you get an example for all items..