strata g&g is becoming more popular since it's first community in the late 1990s in KL. furthermore, there have been ammendments to further fortify strata title law to include landed g&g. key thing to remember is strata landed is "true" g&g and the common areas like parks, roads as well as facilities like pool, clubhouse, joggin track are all on private land. Furthermore if one calculate the actual land owned , it works out to a larger psf. For eg if a unit owner in a strata precinct of 300 houses over 30 acres precinct, he/she actually owns 1/10 acre or 4000++ sft of land even though his lot size may actually be smaller, for eg 20x80 (1600sft).
as for developer conceived individual titled but g&g, there is still a covenants to sign and there also is a committe formed. it means that owners still have to comply to some rules. however, the question mark remains over what happens when developer has handed over titles to the owners, as the common areas will revert back to the authorities. so technically those individual titled g&g precinct have common areas and roads that are public property.
some research links:
http://propertyhunter.com.my/v1/expert.php?id=15
http://www.theedgemalaysia.com/insi...vesting-in-a-gated-and-guarded-community.html
the first article link has a very good table showing the differences between g&g with individual title and strata titled landed.
interesting to note is that in 2007, the strata act was ammended to include both schemes, ie strata landed and individual titled g&g. for strata landed, it is clearcut as the whole precinct is private property. however, there are question mark (as borei pointed out) about implementation of even the 2007 ammendments for those individual titled g&g scheme. Hence in 2010, federal authrority issued a further 2010 guideline, as summarised in the table of the first link above. i believe those g&g with individual title will continue to have teething problems as the landscape changes in future. but strata landed is clear cut.