Twitter API limits

I just found out that they existed... by hitting one. Limit of 150 api requests per hour? For me, that's about 10-20 min of heavy usage, and I did do a catchup binge this morning. Dammit. Interesting guidelines, though! Quoted in part below. Link: http://support.twitter.com/entries/15364-about-twitter-limits-update-api-dm-and-following

• Direct Messages: 250 per day.
• API Requests: 150 per hour.
• Updates: 1,000 per day. The daily update limit is further broken down into smaller limits for semi-hourly intervals. Retweets are counted as updates.
• Changes to Account Email: 4 per hour.
• Following (daily): Please note that this is a technical account limit only, and there are additional rules prohibiting aggressive following behavior. You can find detailed page describing following limits and prohibited behavior on the Follow Limits and Best Practices Page. The technical follow limit is 1,000 per day.
• Following (account-based): Once an account is following 2,000 other users, additional follow attempts are limited by account-specific ratios. The Follow Limits and Best Practices Page has more information.