Playing guitar through a speaker thing similar to an ihome?

Would it work if i played my guitar like this?: i would plug a regular amp chord into my guitar and on the other end would be a multi effects pedal with another amp chord on the output jack and on the other end of that chord would be something like this: http://www.radioshack.com/product/index.jsp?productId=2062467 which would go into a regular speaker meant to play ipods. It also has an auxiliary input in the back which is where that would go. Would that work or would i lose sound quality/volume in the adapter? This is the speaker i have: http://www.bestbuy.com/...Id=2284337 i'm pretty sure its 30w and i don't need it to be that loud it will just be for practicing.whatya think?

Will i lose the notes on my iphone if i update it?

I lost my phone so as a replacement i got my Dads old phone which is fine but he wants the notes from his old iPhone.anyway i know how to do it using mobile me but the problem is it's an incredibly outdated iphone and doesn't have the option it would have if i updated it. So if i was to update the phone would i lose my notes?

What does jailbreaking your iPhone do?

I hear people talk about jailbreaking their iPhone/iPod all the time, but I'm not really sure what that means? What are the benefits of doing this?

Added (1). * If you could also take the time to check out my other question, it would be very much appreciated! Thank you! ↓↓↓

http://answers.yahoo.com/question/index;_ylt=AslNaZc3q4hDpkpfLo364cPsy6IX;_ylv=3?qid=20120807012121AAp9IN3

I don't get any notifications on my iphone?

I use iphone 3G 16GB. All THE NOTIFICATIONS IN THE SETTINGS ARE ON BUT I DON't GET AY NOTICATIONS FROM THE DOWNLOADED APPS LIKE VIBER FACEBOOK OR WHATSAPP… Please Help AND ANSWER ME IF CAN ON THEM FROM IFILE?

How to unlock my iphone? - 2

I bought an iphone 3gs from ebay and it was locked to telstra, i live in australia and telstra apperently unlock it for free but they need details and i don't know anything about the iphone so the guy told me that he can't do anything about it, i heard there's a number called 1800-IPHONE and that they could unlock it there or is there another way or am i just screwed. Please Help! Btw is there anyway to do it over the internet for free besides jailbreak