Couple of updates* You can now import the output form vanitygen.
* Brain Wallet import now supported (Same format as bitaddress.org)

* When sending a transaction the UI will no longer ask for a private key for a watch only address unless there isn't sufficient funds available in addresses which already have a PK associated.
* Fixed DNS SPF records (Thanks Stephen)
* Potential security issue with uservoice script. Uservoice will now only load on
https://blockchain.info/wallet/support-pages. (Thanks coderrr)
Finally got around to adding your ips. Sorry for the delay.
One third of the BTC came through immediately, and no more has been transferred in the last two hours. I'll just wait it out until tomorrow and see...

Payments > 1000 BTC can take few hours depending on how busy the service is that day. Sorry for the delay.
wouldnt it be awesome to just import a wallet.dat?
Yeah I really wanted to do this but with pure javascript I don't think it's possible. The alternative option is introducing a java applet but it opens up a lot of potential security issues (Same with a downloadable java app).
The JSON RPC import can provide similar functionality though.