getRecordHistory.m

// get a record's location history

[client getHistoryForRecord:@"recordID"
                    inLayer:@"com.simplegeo.example"
                      limit:nil // optional limit
                     cursor:nil // for pagination
                   callback:[SGCallback callbackWithSuccessBlock:
                             ^(id response) {
                                 // you've got location history!
                                 // to create an array of SGPoint objects...
                                 NSArray *locations = [NSArray arrayWithSGCollection:response
                                                                                type:SGCollectionTypePoints];
                             } failureBlock:^(NSError *error) {
                                 // handle failure
                             }]];