Sample project that animates single row sprite sheets(I will later add support for multiple rows/animations for single sprites) This is for Titanium iOS and Android

spriteSheetAnimator.js

//"THE BEER-WARE LICENSE": As long as you retain this notice you can do whatever you want with this stuff. 
//If we meet some day, and you think this stuff is worth it, you can buy me a beer in return Jamie Buckley

var win = Ti.UI.createWindow({
  backgroundColor: 'black',
	fullscreen: true,
	width: Ti.Platform.displayCaps.platformWidth,
	height: Ti.Platform.displayCaps.platformHeight
});

//Create your sprites and specify necessary values.
var sprite1 = {
			spritePos:1, //*Specify the starting frame of the animation
			spriteWidth: 150, //*Specify the width of the frames
			spriteHeight: 150, //*Specify the height of the frame
			spriteLength: 6, //*Specify the number of frames in the animation
			sheetHeight: 150, //*Specify the total height of the sprite sheet
			sheetLength: 900, //*Specify the total length of the sprite sheet
			spriteX: 0, //*Specify the X position you wish the sprite to be drawn at
			spriteY: 0, //*Specify the Y position you wish the sprite to be drawn at
			spriteImage: 'http://abload.de/img/sprite7uk4j.png' //*Specify Image Location or URL for best performance use local images, I used remote images to make this project more compact
			};
var sprite2 = {spritePos:2, spriteWidth: 150, spriteHeight: 150, spriteLength: 6, sheetHeight: 150, sheetLength: 900, spriteX: 150, spriteY: 0, spriteImage: 'http://abload.de/img/sprite2ulkvc.png'};
var sprite3 = {spritePos:3, spriteWidth: 150, spriteHeight: 150, spriteLength: 6, sheetHeight: 150, sheetLength: 900, spriteX: 0, spriteY: 150, spriteImage: 'http://abload.de/img/sprite7uk4j.png'};
var sprite4 = {spritePos:4, spriteWidth: 150, spriteHeight: 150, spriteLength: 6, sheetHeight: 150, sheetLength: 900, spriteX: 150, spriteY: 150, spriteImage: 'http://abload.de/img/sprite2ulkvc.png'};
var sprite5 = {spritePos:5, spriteWidth: 150, spriteHeight: 150, spriteLength: 6, sheetHeight: 150, sheetLength: 900, spriteX: 0, spriteY: 300, spriteImage: 'http://abload.de/img/sprite7uk4j.png'};
var sprite6 = {spritePos:6, spriteWidth: 150, spriteHeight: 150, spriteLength: 6, sheetHeight: 150, sheetLength: 900, spriteX: 150, spriteY: 300, spriteImage: 'http://abload.de/img/sprite2ulkvc.png'};

//Add your new sprite to the array
var sprites = [sprite1, sprite2, sprite3, sprite4, sprite5, sprite6];

//Function for creating the containers that hold the sprites, this will be the viewable area of the sheet on screen
function spriteView(sprite){
	sv = Ti.UI.createView({left: sprite.spriteX, top: sprite.spriteY, height: sprite.spriteHeight, width: sprite.spriteWidth});
	return sv;
};

//Create the imageview that the spritesheet is loaded into
function sprite(sprite){
	s = Ti.UI.createImageView({top: 0, left: 0, height: sprite.sheetHeight, width: sprite.sheetLength, image: sprite.spriteImage});

	return s;
};

var spriteContainers = [];
var spriteImages = [];

//Programatically draw all sprites in the array on screen
for(var i = 0; i < sprites.length; i++){
	var newSpriteContainer = new spriteView(sprites[i]);
	spriteContainers.push(newSpriteContainer);
	var newSprite = new sprite(sprites[i]);
	spriteImages.push(newSprite);
	newSpriteContainer.add(newSprite);
	win.add(newSpriteContainer);
};

//Update the sprites 10 times a second
setInterval(function(){animateSprite()}, 100);

//Animate the spritesheets, when it reaches the end of the animation, revert to the beginning
function animateSprite(){
	for(var i = 0; i < sprites.length; i++){
		if(sprites[i].spritePos == sprites[i].spriteLength){
				sprites[i].spritePos =  1;
				spriteImages[i].left = 0;
			}
		else{
				spriteImages[i].left -= sprites[i].spriteWidth;
				sprites[i].spritePos++;
			}
	}
};

win.open();

i have a slightly more robust implementation of the same basic idea here: https://github.com/n3wc/TiSprite
it does scaling, loop limiting, forward/backward & 'bounce' animations
you can define specific frames by x,y & width,height or if your sprites are all perfect squares it calculates them so you can reference them by frames 0,1,2,3 etc
still pretty raw but very usable