Building a new UI was the biggest hurdle, he said via email.

Perhaps the biggest hurdle for Maple is getting past Canadian competition authorities.

The third and the biggest hurdle to reviving Kingfisher is government policy.

GRAYSON: The biggest hurdle that we face is the whole greenlight process.

The biggest hurdle for the film-makers was what to do with Death.

The biggest hurdle, however, analysts and executives said, is consumer awareness.

The prime minister's biggest hurdle will be passing the proposed deal through parliament.

Job growth has been the biggest hurdle to advances by the U.S. economy.

But the biggest hurdle for Better Place wasn't just scale, it was adoption.

That, from my understanding, is the biggest hurdle at the moment.

Cost is usually the single biggest hurdle for delivering a payload into orbit.

The biggest hurdle is the month-long gap in payments that must be bridged.

The biggest hurdle, as that of so many proposed mergers, would be ownership.

The biggest hurdle he overcame, apparently, was having an older brother.

Elimination of the latent HIV reservoir remains the biggest hurdle to achieve HIV cure.

Picking the right card might just be your biggest hurdle.