Since my spend for the AA Amex card is almost done, I applied for the United Explorer card today and got instant approval. I'm only going for the 50K, not the 25K spend for 10K miles. I hope to get the 50K miles with no hassle, but I printed out the offer page just in case. So by the end of the year I should have enough for a trip to Asia in business class on two airlines, adding in what I've already accumulated. Love these card offers.