After making the following change it works. Please see result below.
Change,
NSLog(@"Envelope %i's Simple Representation: %@", [env simpleRepresentation]);
As,
NSLog(@"Envelope %i's Simple Representation: %@", i, [env simpleRepresentation]);
Result in Debug window:
[Session started at 2010-04-15 18:23:00 -0700.]
2010-04-15 18:23:02.327 AGSBufferParameter[4390:207] bSR's wkid: 4326 wkt: GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137,298.257223563]],PRIMEM["Greenwich",0],UNIT["Degree",0.017453292519943295]]
2010-04-15 18:23:02.328 AGSBufferParameter[4390:207] Buffer Distances
2010-04-15 18:23:02.328 AGSBufferParameter[4390:207] 1.000000
2010-04-15 18:23:02.329 AGSBufferParameter[4390:207] 3.141590
2010-04-15 18:23:02.329 AGSBufferParameter[4390:207] Test Envelope
2010-04-15 18:23:02.330 AGSBufferParameter[4390:207] Test Envelope's xmin: -180.000000 ymin: -90.000000 xmax: 180.000000 ymax:90.000000 Center's X: 0.000000 Center's Y: 0.000000 Width: 360.000000 Height: 180.000000
2010-04-15 18:23:02.331 AGSBufferParameter[4390:207] Test Envelope Path == path2: 1
2010-04-15 18:23:02.331 AGSBufferParameter[4390:207] Test Envelope Path == path3: 0
2010-04-15 18:23:02.331 AGSBufferParameter[4390:207] Test Envelope's Bounding Box Origin x: -180.000000 y: -90.000000 width: 360.000000 height: 180.000000
2010-04-15 18:23:02.332 AGSBufferParameter[4390:207] Test Envelope's CGRect Origin x: -180.000000 y: -90.000000 width: 360.000000 height: 180.000000
2010-04-15 18:23:02.332 AGSBufferParameter[4390:207] Inside Pt is 1
2010-04-15 18:23:02.333 AGSBufferParameter[4390:207] Outside Pt is 0
2010-04-15 18:23:02.334 AGSBufferParameter[4390:207] Envelope's Simple Representation is -180.00000000,-90.00000000,180.00000000,90.00000000
2010-04-15 18:23:02.334 AGSBufferParameter[4390:207] Outside Envelope is 0
2010-04-15 18:23:02.335 AGSBufferParameter[4390:207] Inside Envelope is 1
2010-04-15 18:23:02.335 AGSBufferParameter[4390:207] The envelope is nil.
2010-04-15 18:23:02.336 AGSBufferParameter[4390:207] Intersection Envelope: 180.00000000,-90.00000000,180.00000000,-90.00000000
2010-04-15 18:23:02.338 AGSBufferParameter[4390:207] Geometry 1
2010-04-15 18:23:02.339 AGSBufferParameter[4390:207] Spatial Reference 1's wkid: 4326 wkt: GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137,298.257223563]],PRIMEM["Greenwich",0],UNIT["Degree",0.017453292519943295]]
2010-04-15 18:23:02.340 AGSBufferParameter[4390:207] Envelope 1's Simple Representation: 0.00000000,0.00000000,0.00000000,0.00000000
2010-04-15 18:23:02.341 AGSBufferParameter[4390:207] Geometry 2
2010-04-15 18:23:02.341 AGSBufferParameter[4390:207] Spatial Reference 2's wkid: 4326 wkt: GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137,298.257223563]],PRIMEM["Greenwich",0],UNIT["Degree",0.017453292519943295]]
2010-04-15 18:23:02.342 AGSBufferParameter[4390:207] Envelope 2's Simple Representation: -180.00000000,91.00000000,-180.00000000,91.00000000
2010-04-15 18:23:02.342 AGSBufferParameter[4390:207] bOSR's wkid: 3395 wkt: PROJCS["WGS 84 / World Mercator",GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137,298.257223563]],PRIMEM["Greenwich",0],UNIT["Degree",0.017453292519943295]],PROJECTION["Mercator"],PARAMETER["central_meridian",0],PARAMETER["scale_factor",1],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["Meter",1]]
2010-04-15 18:23:02.343 AGSBufferParameter[4390:207] Union Results: 1
2010-04-15 18:23:02.343 AGSBufferParameter[4390:207] Union Results: 0
2010-04-15 18:23:02.343 AGSBufferParameter[4390:207] Unit: 9001