Quote from: tralala on March 28, 2013, 04:27:23 PM

Increasing the blocksize limit is a possible short- to midterm solution and it's increasingly discussed so this might be undertaken in the near future. I imagine a blocksize of 10 MB is possible thus increasing the limit to 70tr/s. This is already quite impressive and should be enough for a couple of years.

Gavin has all but said an increase will happen in his last development update.

Quote from: tralala on March 28, 2013, 04:27:23 PM

Bigger blocksize does not only increase the storage requirements but also the time other miners verify a block and thus the risk of producing an orphan block. I've not yet heard of a solution how this might be circumvented.

That's a feature, not a bug.

https://bitcointalk.org/index.php?topic=140233.msg1503099#msg1503099

Quote from: tralala on March 28, 2013, 04:27:23 PM

I think the longterm solution IF Bitcoin becomes a transaction currency instead of a speculation object is more off-blockchain transactions. How to make those secure and reliably integrated in the main blockchain will be a challenge.

Off-blockchain transactions are a terrible idea, and aren't even necessary. The optimizations needed to overcome the challenges you are referring to are not a mystery.