user19466: I sent 0.08 BTC yesterday using the blockchain.info wallet on the iPhone. 
It's been 24 hours and my money is still unsent; I really don't know what to do. It still says unconfirmed. Why is this? What can I do?
Transaction in question.

user7267: The previous transaction that you are using to spend the coin is also unconfirmed. See below. Looks like this is a problem with the blockchain wallet that you want to email their tech support about. It doesn't even seem to be broadcasting the transactions anymore.
https://blockchain.info/tx/2bf18c5ba2fe56f3d9ada4880181518e905f275bfc9826fdbebd07dca34f2ef2
If you want to fix the problem yourself, you could manually broadcast the transactions out by first getting the transaction hex : 
https://blockchain.info/tx/2bf18c5ba2fe56f3d9ada4880181518e905f275bfc9826fdbebd07dca34f2ef2?format=hex
And using:
https://blockchain.info/pushtx

19466: <p>I sent 0.08 BTC yesterday using the blockchain.info wallet on the iPhone. </p>

<p>It's been 24 hours and my money is still unsent; I really don't know what to do. It still says unconfirmed. Why is this? What can I do?</p>

<p><a href="https://blockchain.info/tx/7e3b70a23c46eeed599558e049948319a3524edd3355611a80b92b9867f12b88" rel="nofollow">Transaction in question.</a></p>
 7267: <p>The previous transaction that you are using to spend the coin is also unconfirmed. See below. Looks like this is a problem with the blockchain wallet that you want to email their tech support about. It doesn't even seem to be broadcasting the transactions anymore.</p>

<p><a href="https://blockchain.info/tx/2bf18c5ba2fe56f3d9ada4880181518e905f275bfc9826fdbebd07dca34f2ef2" rel="nofollow">https://blockchain.info/tx/2bf18c5ba2fe56f3d9ada4880181518e905f275bfc9826fdbebd07dca34f2ef2</a></p>

<p>If you want to fix the problem yourself, you could manually broadcast the transactions out by first getting the transaction hex : </p>

<p><a href="https://blockchain.info/tx/2bf18c5ba2fe56f3d9ada4880181518e905f275bfc9826fdbebd07dca34f2ef2?format=hex" rel="nofollow">https://blockchain.info/tx/2bf18c5ba2fe56f3d9ada4880181518e905f275bfc9826fdbebd07dca34f2ef2?format=hex</a></p>

<p>And using:</p>

<p><a href="https://blockchain.info/pushtx" rel="nofollow">https://blockchain.info/pushtx</a></p>
