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Revision 2, the latest version, was released in March:
http://community.clickteam.com/showthread.php?t=68442

I'm not tasked with developing Lacewing or anything for iOS - I just wrote the help file for Lacewing. I don't know who's responsible for the iOS port of Lacewing - you should ask James. ;)

I honestly do not know which is faster - I would assume SP2 may be slower because it supports more complex parsing options and that ST may be faster because it only does single character delimiters,...

The normal INI object is just a minimal implementation of the INI format - it doesn't support advanced features such as listing all groups and all items in a group or searching/wildcard...