diff --git a/Promise.js b/Promise.js
index b0abb88..25a9ed6 100644
--- a/Promise.js
+++ b/Promise.js
@@ -34,6 +34,45 @@ var generator = require('./generator')
 
 
 
+//---------------------------------------------------------------------
+// XXX EXPERIMENTING...
+
+//
+//	pack(<array>)
+//	pack(<promise>)
+//		-> <packed>
+//		-> <packed>
+//
+//	<packed> ::=
+//		<packed-array>
+//		| <packed-promise>
+//
+//	<packed-array> ::=
+//		[
+//			<item>
+//			| <array-of-items>
+//			| <promise-item>
+//			| <promise-array-of-items>,
+//			...
+//		]
+//
+var pack =
+module.pack =
+function(list){
+}
+
+var handle =
+module.handle =
+function(list, handler, onerror){
+}
+
+var unpack =
+module.unpack =
+function(list){
+}
+
+
+
 //---------------------------------------------------------------------
 // Iterable promise...
 // 
@@ -198,6 +237,7 @@ object.Constructor('IterablePromise', Promise, {
 		list = list instanceof Array ?
 			list
 			: [list]
+
 		var map = !!this.constructor.STOP ?
 			'smap'
 			: 'map'
@@ -217,6 +257,7 @@ object.Constructor('IterablePromise', Promise, {
 									EMPTY
 									: e })
 							: res })
+					// XXX this will not expand promise results...
 					.flat()
 				: handler(elem) }
 		return list
@@ -269,6 +310,7 @@ object.Constructor('IterablePromise', Promise, {
 				e = e.__unpack() }
 			if(e instanceof SyncPromise){
 				e = e.sync() }
+
 			// give up on a sync solution...
 			if(e instanceof Promise){
 				// XXX can we return an IterablePromise???
@@ -278,6 +320,7 @@ object.Constructor('IterablePromise', Promise, {
 						// XXX do we need to handle EMPTY???
 						return list.flat() })
 					.iter() }
+
 			res.push(e) }
 		return res.flat() },
 	
diff --git a/test.js b/test.js
index 81f57a6..796408a 100755
--- a/test.js
+++ b/test.js
@@ -327,19 +327,21 @@ var cases = test.Cases({
 			[1,2,3,4,5,6],
 				'Promise.seqiter(..) handle order')
 
-		// XXX handler...
-		var async_handler = async function(input, output, handler, msg){
+
+		var test_async_handler = async function(input, output, handler, msg){
+			// sanity check...
 			assert.array(
 				await Promise.iter(input, handler),
 				output,
-					msg)
+				msg+' (sanity check)')
 			assert.array(
 				await Promise.iter(input,
 					function(e){ 
-						return handler(e) }),
+						return Promise.resolve(handler(e)) }),
 				await Promise.iter(input, handler),
-					msg) }
-		await async_handler(
+				msg) }
+
+		await test_async_handler(
 			[
 				1, 
 				[2], 
@@ -347,9 +349,10 @@ var cases = test.Cases({
 				Promise.resolve([4]),
 			], 
 			[],
-			function(e){ return [] },
-			'handler returns promise - empty')
-		await async_handler(
+			function(e){ 
+				return [] },
+			'handler returns promise (empty)')
+		await test_async_handler(
 			[
 				1, 
 				[2], 
@@ -357,50 +360,9 @@ var cases = test.Cases({
 				Promise.resolve([4]),
 			], 
 			[ 'moo', 'moo', 'moo', 'moo' ],
-			function(e){ return ['moo'] },
-			'handler returns promise - array')
-
-		/*
-		assert.array(
-			await Promise.iter(
-				[
-					1, 
-					[2], 
-					Promise.resolve(3), 
-					Promise.resolve([4]),
-				], 
-				e => Promise.resolve([])),
-			//[],
-			await Promise.iter(
-				[
-					1, 
-					[2], 
-					Promise.resolve(3), 
-					Promise.resolve([4]),
-				], 
-				e => []),
-				'handler returns promise - empty')
-		assert.array(
-			await Promise.iter(
-				[
-					1, 
-					[2], 
-					Promise.resolve(3), 
-					Promise.resolve([4]),
-				], 
-				e => Promise.resolve(['moo'])),
-			// XXX what should this return???
-			//[ 'moo', 'moo', 'moo', 'moo' ],
-			await Promise.iter(
-				[
-					1, 
-					[2], 
-					Promise.resolve(3), 
-					Promise.resolve([4]),
-				], 
-				e => ['moo']),
-				'handler returns promise - array')
-		//*/
+			function(e){ 
+				return ['moo'] },
+			'handler returns promise (array)')
 	},
 
 	// Date.js